Add runtime config store and reload command

1 files changed, 1265 insertions, 927 deletions

diff --git a/docs/coverage.html b/docs/coverage.html
index 6828b9a..4a3153b 100644
--- a/docs/coverage.html
+++ b/docs/coverage.html
@@ -61,7 +61,7 @@
 				
 				<option value="file2">codeberg.org/snonux/hexai/cmd/hexai/main.go (71.4%)</option>
 				
-				<option value="file3">codeberg.org/snonux/hexai/internal/appconfig/config.go (88.8%)</option>
+				<option value="file3">codeberg.org/snonux/hexai/internal/appconfig/config.go (88.9%)</option>
 				
 				<option value="file4">codeberg.org/snonux/hexai/internal/editor/editor.go (58.3%)</option>
 				
@@ -71,7 +71,7 @@
 				
 				<option value="file7">codeberg.org/snonux/hexai/internal/hexaiaction/prompts.go (92.0%)</option>
 				
-				<option value="file8">codeberg.org/snonux/hexai/internal/hexaiaction/run.go (71.0%)</option>
+				<option value="file8">codeberg.org/snonux/hexai/internal/hexaiaction/run.go (76.8%)</option>
 				
 				<option value="file9">codeberg.org/snonux/hexai/internal/hexaiaction/tui.go (65.5%)</option>
 				
@@ -81,13 +81,13 @@
 				
 				<option value="file12">codeberg.org/snonux/hexai/internal/hexaicli/run.go (90.0%)</option>
 				
-				<option value="file13">codeberg.org/snonux/hexai/internal/hexailsp/run.go (90.2%)</option>
+				<option value="file13">codeberg.org/snonux/hexai/internal/hexailsp/run.go (90.8%)</option>
 				
 				<option value="file14">codeberg.org/snonux/hexai/internal/llm/copilot.go (82.4%)</option>
 				
 				<option value="file15">codeberg.org/snonux/hexai/internal/llm/ollama.go (89.8%)</option>
 				
-				<option value="file16">codeberg.org/snonux/hexai/internal/llm/openai.go (87.1%)</option>
+				<option value="file16">codeberg.org/snonux/hexai/internal/llm/openai.go (86.4%)</option>
 				
 				<option value="file17">codeberg.org/snonux/hexai/internal/llm/provider.go (100.0%)</option>
 				
@@ -99,41 +99,45 @@
 				
 				<option value="file21">codeberg.org/snonux/hexai/internal/logging/logging.go (90.9%)</option>
 				
-				<option value="file22">codeberg.org/snonux/hexai/internal/lsp/context.go (76.9%)</option>
+				<option value="file22">codeberg.org/snonux/hexai/internal/lsp/chat_commands.go (68.0%)</option>
 				
-				<option value="file23">codeberg.org/snonux/hexai/internal/lsp/document.go (91.5%)</option>
+				<option value="file23">codeberg.org/snonux/hexai/internal/lsp/context.go (74.4%)</option>
 				
-				<option value="file24">codeberg.org/snonux/hexai/internal/lsp/handlers.go (92.9%)</option>
+				<option value="file24">codeberg.org/snonux/hexai/internal/lsp/document.go (91.5%)</option>
 				
-				<option value="file25">codeberg.org/snonux/hexai/internal/lsp/handlers_codeaction.go (82.3%)</option>
+				<option value="file25">codeberg.org/snonux/hexai/internal/lsp/handlers.go (92.2%)</option>
 				
-				<option value="file26">codeberg.org/snonux/hexai/internal/lsp/handlers_completion.go (87.2%)</option>
+				<option value="file26">codeberg.org/snonux/hexai/internal/lsp/handlers_codeaction.go (84.1%)</option>
 				
-				<option value="file27">codeberg.org/snonux/hexai/internal/lsp/handlers_document.go (90.1%)</option>
+				<option value="file27">codeberg.org/snonux/hexai/internal/lsp/handlers_completion.go (88.8%)</option>
 				
-				<option value="file28">codeberg.org/snonux/hexai/internal/lsp/handlers_execute.go (75.0%)</option>
+				<option value="file28">codeberg.org/snonux/hexai/internal/lsp/handlers_document.go (87.6%)</option>
 				
-				<option value="file29">codeberg.org/snonux/hexai/internal/lsp/handlers_init.go (63.6%)</option>
+				<option value="file29">codeberg.org/snonux/hexai/internal/lsp/handlers_execute.go (75.0%)</option>
 				
-				<option value="file30">codeberg.org/snonux/hexai/internal/lsp/handlers_utils.go (90.0%)</option>
+				<option value="file30">codeberg.org/snonux/hexai/internal/lsp/handlers_init.go (66.7%)</option>
 				
-				<option value="file31">codeberg.org/snonux/hexai/internal/lsp/server.go (79.8%)</option>
+				<option value="file31">codeberg.org/snonux/hexai/internal/lsp/handlers_utils.go (89.9%)</option>
 				
-				<option value="file32">codeberg.org/snonux/hexai/internal/lsp/transport.go (73.0%)</option>
+				<option value="file32">codeberg.org/snonux/hexai/internal/lsp/server.go (85.4%)</option>
 				
-				<option value="file33">codeberg.org/snonux/hexai/internal/stats/lock_posix.go (83.3%)</option>
+				<option value="file33">codeberg.org/snonux/hexai/internal/lsp/transport.go (73.0%)</option>
 				
-				<option value="file34">codeberg.org/snonux/hexai/internal/stats/stats.go (75.8%)</option>
+				<option value="file34">codeberg.org/snonux/hexai/internal/runtimeconfig/store.go (85.5%)</option>
 				
-				<option value="file35">codeberg.org/snonux/hexai/internal/testutil/fixtures.go (100.0%)</option>
+				<option value="file35">codeberg.org/snonux/hexai/internal/stats/lock_posix.go (83.3%)</option>
 				
-				<option value="file36">codeberg.org/snonux/hexai/internal/textutil/human.go (92.3%)</option>
+				<option value="file36">codeberg.org/snonux/hexai/internal/stats/stats.go (75.8%)</option>
 				
-				<option value="file37">codeberg.org/snonux/hexai/internal/textutil/textutil.go (90.4%)</option>
+				<option value="file37">codeberg.org/snonux/hexai/internal/testutil/fixtures.go (100.0%)</option>
 				
-				<option value="file38">codeberg.org/snonux/hexai/internal/tmux/status.go (73.8%)</option>
+				<option value="file38">codeberg.org/snonux/hexai/internal/textutil/human.go (92.3%)</option>
 				
-				<option value="file39">codeberg.org/snonux/hexai/internal/tmux/tmux.go (88.6%)</option>
+				<option value="file39">codeberg.org/snonux/hexai/internal/textutil/textutil.go (90.4%)</option>
+				
+				<option value="file40">codeberg.org/snonux/hexai/internal/tmux/status.go (76.7%)</option>
+				
+				<option value="file41">codeberg.org/snonux/hexai/internal/tmux/tmux.go (88.6%)</option>
 				
 				</select>
 			</div>
@@ -349,7 +353,7 @@ type CustomAction struct {
 }
 
 // Constructor: defaults for App (kept first among functions)
-func newDefaultConfig() App <span class="cov5" title="37">{
+func newDefaultConfig() App <span class="cov6" title="45">{
         // Coding-friendly default temperature across providers
         // Users can override per provider in config.toml (including 0.0).
         t := 0.2
@@ -405,29 +409,40 @@ func newDefaultConfig() App <span class="cov5" title="37">{
 
 // Load reads configuration from a file and merges with defaults.
 // It respects the XDG Base Directory Specification.
-func Load(logger *log.Logger) App <span class="cov5" title="36">{
+func Load(logger *log.Logger) App <span class="cov6" title="42">{ return LoadWithOptions(logger, LoadOptions{}) }</span>
+
+// LoadOptions tune how configuration is loaded at runtime.
+type LoadOptions struct {
+        // IgnoreEnv skips applying environment overrides when true.
+        IgnoreEnv bool
+}
+
+// LoadWithOptions reads configuration and applies the requested loading options.
+func LoadWithOptions(logger *log.Logger, opts LoadOptions) App <span class="cov6" title="44">{
         cfg := newDefaultConfig()
-        if logger == nil </span><span class="cov4" title="9">{
+        if logger == nil </span><span class="cov4" title="13">{
                 return cfg // Return defaults if no logger is provided (e.g. in tests)
         }</span>
 
-        <span class="cov5" title="27">configPath, err := getConfigPath()
+        <span class="cov5" title="31">configPath, err := getConfigPath()
         if err != nil </span><span class="cov0" title="0">{
                 logger.Printf("%v", err)
-                // Even if config path cannot be resolved, still allow env overrides below.
-        }</span> else<span class="cov5" title="27"> {
-                if fileCfg, err := loadFromFile(configPath, logger); err == nil &amp;&amp; fileCfg != nil </span><span class="cov5" title="22">{
+                // Even if config path cannot be resolved, keep defaults and optionally apply env overrides below.
+        }</span> else<span class="cov5" title="31"> {
+                if fileCfg, err := loadFromFile(configPath, logger); err == nil &amp;&amp; fileCfg != nil </span><span class="cov5" title="26">{
                         cfg.mergeWith(fileCfg)
                 }</span>
                 // When the config file is missing or invalid, we keep defaults and still
-                // apply any environment overrides below.
+                // apply any environment overrides below (unless disabled).
         }
 
-        // Environment overrides (take precedence over file)
-        <span class="cov5" title="27">if envCfg := loadFromEnv(logger); envCfg != nil </span><span class="cov3" title="5">{
-                cfg.mergeWith(envCfg)
-        }</span>
-        <span class="cov5" title="27">return cfg</span>
+        <span class="cov5" title="31">if !opts.IgnoreEnv </span><span class="cov5" title="29">{
+                // Environment overrides (take precedence over file)
+                if envCfg := loadFromEnv(logger); envCfg != nil </span><span class="cov3" title="7">{
+                        cfg.mergeWith(envCfg)
+                }</span>
+        }
+        <span class="cov5" title="31">return cfg</span>
 }
 
 // Private helpers
@@ -496,7 +511,7 @@ type sectionOpenAI struct {
         Presets     map[string]string `toml:"presets"`
 }
 
-func (s sectionOpenAI) isZero() bool <span class="cov5" title="22">{
+func (s sectionOpenAI) isZero() bool <span class="cov5" title="26">{
         return strings.TrimSpace(s.Model) == "" &amp;&amp; strings.TrimSpace(s.BaseURL) == "" &amp;&amp; s.Temperature == nil &amp;&amp; len(s.Presets) == 0
 }</span>
 
@@ -594,11 +609,11 @@ type sectionTmux struct {
         CustomMenuHotkey string `toml:"custom_menu_hotkey"`
 }
 
-func (fc *fileConfig) toApp() App <span class="cov5" title="22">{
+func (fc *fileConfig) toApp() App <span class="cov5" title="26">{
         out := App{}
 
         // Merge section: general
-        if (fc.General != sectionGeneral{}) || fc.General.CodingTemperature != nil </span><span class="cov2" title="3">{
+        if (fc.General != sectionGeneral{}) || fc.General.CodingTemperature != nil </span><span class="cov3" title="7">{
                 tmp := App{
                         MaxTokens:          fc.General.MaxTokens,
                         ContextMode:        fc.General.ContextMode,
@@ -610,13 +625,13 @@ func (fc *fileConfig) toApp() App <span class="cov5" title="22">{
         }</span>
 
         // logging
-        <span class="cov5" title="22">if (fc.Logging != sectionLogging{}) </span><span class="cov1" title="1">{
+        <span class="cov5" title="26">if (fc.Logging != sectionLogging{}) </span><span class="cov1" title="1">{
                 tmp := App{LogPreviewLimit: fc.Logging.LogPreviewLimit}
                 out.mergeBasics(&amp;tmp)
         }</span>
 
         // completion
-        <span class="cov5" title="22">if (fc.Completion != sectionCompletion{}) </span><span class="cov2" title="3">{
+        <span class="cov5" title="26">if (fc.Completion != sectionCompletion{}) </span><span class="cov2" title="3">{
                 tmp := App{
                         CompletionDebounceMs:  fc.Completion.CompletionDebounceMs,
                         CompletionThrottleMs:  fc.Completion.CompletionThrottleMs,
@@ -626,31 +641,31 @@ func (fc *fileConfig) toApp() App <span class="cov5" title="22">{
         }</span>
 
         // triggers
-        <span class="cov5" title="22">if len(fc.Triggers.TriggerCharacters) &gt; 0 </span><span class="cov2" title="3">{
+        <span class="cov5" title="26">if len(fc.Triggers.TriggerCharacters) &gt; 0 </span><span class="cov2" title="3">{
                 tmp := App{TriggerCharacters: fc.Triggers.TriggerCharacters}
                 out.mergeBasics(&amp;tmp)
         }</span>
 
         // inline
-        <span class="cov5" title="22">if (fc.Inline != sectionInline{}) </span><span class="cov1" title="1">{
+        <span class="cov5" title="26">if (fc.Inline != sectionInline{}) </span><span class="cov1" title="1">{
                 tmp := App{InlineOpen: fc.Inline.InlineOpen, InlineClose: fc.Inline.InlineClose}
                 out.mergeBasics(&amp;tmp)
         }</span>
 
         // chat
-        <span class="cov5" title="22">if strings.TrimSpace(fc.Chat.ChatSuffix) != "" || len(fc.Chat.ChatPrefixes) &gt; 0 </span><span class="cov1" title="1">{
+        <span class="cov5" title="26">if strings.TrimSpace(fc.Chat.ChatSuffix) != "" || len(fc.Chat.ChatPrefixes) &gt; 0 </span><span class="cov1" title="1">{
                 tmp := App{ChatSuffix: fc.Chat.ChatSuffix, ChatPrefixes: fc.Chat.ChatPrefixes}
                 out.mergeBasics(&amp;tmp)
         }</span>
 
         // provider
-        <span class="cov5" title="22">if strings.TrimSpace(fc.Provider.Name) != "" </span><span class="cov2" title="4">{
+        <span class="cov5" title="26">if strings.TrimSpace(fc.Provider.Name) != "" </span><span class="cov2" title="4">{
                 tmp := App{Provider: fc.Provider.Name}
                 out.mergeBasics(&amp;tmp)
         }</span>
 
         // openai
-        <span class="cov5" title="22">if !fc.OpenAI.isZero() || fc.OpenAI.Temperature != nil </span><span class="cov2" title="4">{
+        <span class="cov5" title="26">if !fc.OpenAI.isZero() || fc.OpenAI.Temperature != nil </span><span class="cov2" title="4">{
                 tmp := App{
                         OpenAIBaseURL:     fc.OpenAI.BaseURL,
                         OpenAIModel:       fc.OpenAI.resolvedModel(),
@@ -660,7 +675,7 @@ func (fc *fileConfig) toApp() App <span class="cov5" title="22">{
         }</span>
 
         // copilot
-        <span class="cov5" title="22">if (fc.Copilot != sectionCopilot{}) || fc.Copilot.Temperature != nil </span><span class="cov2" title="3">{
+        <span class="cov5" title="26">if (fc.Copilot != sectionCopilot{}) || fc.Copilot.Temperature != nil </span><span class="cov2" title="3">{
                 tmp := App{
                         CopilotBaseURL:     fc.Copilot.BaseURL,
                         CopilotModel:       fc.Copilot.Model,
@@ -670,7 +685,7 @@ func (fc *fileConfig) toApp() App <span class="cov5" title="22">{
         }</span>
 
         // ollama
-        <span class="cov5" title="22">if (fc.Ollama != sectionOllama{}) || fc.Ollama.Temperature != nil </span><span class="cov2" title="3">{
+        <span class="cov5" title="26">if (fc.Ollama != sectionOllama{}) || fc.Ollama.Temperature != nil </span><span class="cov2" title="3">{
                 tmp := App{
                         OllamaBaseURL:     fc.Ollama.BaseURL,
                         OllamaModel:       fc.Ollama.Model,
@@ -681,7 +696,7 @@ func (fc *fileConfig) toApp() App <span class="cov5" title="22">{
 
         // prompts
         // completion
-        <span class="cov5" title="22">if (fc.Prompts.Completion != sectionPromptsCompletion{}) </span><span class="cov1" title="1">{
+        <span class="cov5" title="26">if (fc.Prompts.Completion != sectionPromptsCompletion{}) </span><span class="cov1" title="1">{
                 if strings.TrimSpace(fc.Prompts.Completion.SystemGeneral) != "" </span><span class="cov1" title="1">{
                         out.PromptCompletionSystemGeneral = fc.Prompts.Completion.SystemGeneral
                 }</span>
@@ -702,11 +717,11 @@ func (fc *fileConfig) toApp() App <span class="cov5" title="22">{
                 }</span>
         }
         // chat
-        <span class="cov5" title="22">if strings.TrimSpace(fc.Prompts.Chat.System) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="26">if strings.TrimSpace(fc.Prompts.Chat.System) != "" </span><span class="cov1" title="1">{
                 out.PromptChatSystem = fc.Prompts.Chat.System
         }</span>
         // code action
-        <span class="cov5" title="22">if strings.TrimSpace(fc.Prompts.CodeAction.RewriteSystem) != "" ||
+        <span class="cov5" title="26">if strings.TrimSpace(fc.Prompts.CodeAction.RewriteSystem) != "" ||
                 strings.TrimSpace(fc.Prompts.CodeAction.DiagnosticsSystem) != "" ||
                 strings.TrimSpace(fc.Prompts.CodeAction.DocumentSystem) != "" ||
                 strings.TrimSpace(fc.Prompts.CodeAction.RewriteUser) != "" ||
@@ -763,7 +778,7 @@ func (fc *fileConfig) toApp() App <span class="cov5" title="22">{
                 }
         }
         // cli
-        <span class="cov5" title="22">if (fc.Prompts.CLI != sectionPromptsCLI{}) </span><span class="cov1" title="1">{
+        <span class="cov5" title="26">if (fc.Prompts.CLI != sectionPromptsCLI{}) </span><span class="cov1" title="1">{
                 if strings.TrimSpace(fc.Prompts.CLI.DefaultSystem) != "" </span><span class="cov1" title="1">{
                         out.PromptCLIDefaultSystem = fc.Prompts.CLI.DefaultSystem
                 }</span>
@@ -772,24 +787,24 @@ func (fc *fileConfig) toApp() App <span class="cov5" title="22">{
                 }</span>
         }
         // provider-native
-        <span class="cov5" title="22">if strings.TrimSpace(fc.Prompts.ProviderNative.Completion) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="26">if strings.TrimSpace(fc.Prompts.ProviderNative.Completion) != "" </span><span class="cov1" title="1">{
                 out.PromptNativeCompletion = fc.Prompts.ProviderNative.Completion
         }</span>
 
         // tmux
-        <span class="cov5" title="22">if (fc.Tmux != sectionTmux{}) </span><span class="cov2" title="3">{
+        <span class="cov5" title="26">if (fc.Tmux != sectionTmux{}) </span><span class="cov2" title="3">{
                 out.TmuxCustomMenuHotkey = strings.TrimSpace(fc.Tmux.CustomMenuHotkey)
         }</span>
 
         // stats
-        <span class="cov5" title="22">if fc.Stats.WindowMinutes &gt; 0 </span><span class="cov0" title="0">{
+        <span class="cov5" title="26">if fc.Stats.WindowMinutes &gt; 0 </span><span class="cov0" title="0">{
                 out.StatsWindowMinutes = fc.Stats.WindowMinutes
         }</span>
 
-        <span class="cov5" title="22">return out</span>
+        <span class="cov5" title="26">return out</span>
 }
 
-func loadFromFile(path string, logger *log.Logger) (*App, error) <span class="cov5" title="28">{
+func loadFromFile(path string, logger *log.Logger) (*App, error) <span class="cov5" title="32">{
         b, err := os.ReadFile(path)
         if err != nil </span><span class="cov2" title="4">{
                 if !os.IsNotExist(err) &amp;&amp; logger != nil </span><span class="cov0" title="0">{
@@ -798,7 +813,7 @@ func loadFromFile(path string, logger *log.Logger) (*App, error) <span class="co
                 <span class="cov2" title="4">return nil, err</span>
         }
 
-        <span class="cov5" title="24">var tables fileConfig
+        <span class="cov5" title="28">var tables fileConfig
         errTables := toml.NewDecoder(strings.NewReader(string(b))).Decode(&amp;tables)
         // Raw map for validation/presence checks
         var raw map[string]any
@@ -811,7 +826,7 @@ func loadFromFile(path string, logger *log.Logger) (*App, error) <span class="co
         }
 
         // Reject legacy flat keys at top-level (sectioned-only config is allowed)
-        <span class="cov5" title="22">legacy := map[string]struct{}{
+        <span class="cov5" title="26">legacy := map[string]struct{}{
                 "max_tokens": {}, "context_mode": {}, "context_window_lines": {}, "max_context_tokens": {},
                 "log_preview_limit": {}, "completion_debounce_ms": {}, "completion_throttle_ms": {},
                 "manual_invoke_min_prefix": {}, "trigger_characters": {}, "inline_open": {}, "inline_close": {},
@@ -820,8 +835,8 @@ func loadFromFile(path string, logger *log.Logger) (*App, error) <span class="co
                 "ollama_model": {}, "ollama_base_url": {}, "ollama_temperature": {},
                 "copilot_model": {}, "copilot_base_url": {}, "copilot_temperature": {},
         }
-        for k := range raw </span><span class="cov6" title="48">{
-                if _, isTable := map[string]struct{}{"general": {}, "logging": {}, "completion": {}, "triggers": {}, "inline": {}, "chat": {}, "provider": {}, "openai": {}, "copilot": {}, "ollama": {}, "prompts": {}}[k]; isTable </span><span class="cov6" title="45">{
+        for k := range raw </span><span class="cov6" title="52">{
+                if _, isTable := map[string]struct{}{"general": {}, "logging": {}, "completion": {}, "triggers": {}, "inline": {}, "chat": {}, "provider": {}, "openai": {}, "copilot": {}, "ollama": {}, "prompts": {}}[k]; isTable </span><span class="cov6" title="49">{
                         continue</span>
                 }
                 <span class="cov2" title="3">if _, isLegacy := legacy[k]; isLegacy </span><span class="cov0" title="0">{
@@ -829,13 +844,13 @@ func loadFromFile(path string, logger *log.Logger) (*App, error) <span class="co
                 }</span>
         }
 
-        <span class="cov5" title="22">if logger != nil </span><span class="cov5" title="22">{
+        <span class="cov5" title="26">if logger != nil </span><span class="cov5" title="26">{
                 logger.Printf("loaded configuration from %s (TOML)", path)
         }</span>
 
         // Merge order: flat first, then tables (so tables win over zero flat values)
         // Build App from tables only
-        <span class="cov5" title="22">tab := tables.toApp()
+        <span class="cov5" title="26">tab := tables.toApp()
         // Ensure explicit values from raw map are respected (defensive for ints)
         if t, ok := raw["completion"].(map[string]any); ok </span><span class="cov2" title="3">{
                 if v, present := t["manual_invoke_min_prefix"]; present </span><span class="cov2" title="3">{
@@ -849,7 +864,7 @@ func loadFromFile(path string, logger *log.Logger) (*App, error) <span class="co
                         }
                 }
         }
-        <span class="cov5" title="22">if t, ok := raw["logging"].(map[string]any); ok </span><span class="cov2" title="3">{
+        <span class="cov5" title="26">if t, ok := raw["logging"].(map[string]any); ok </span><span class="cov2" title="3">{
                 if v, present := t["log_preview_limit"]; present </span><span class="cov2" title="3">{
                         switch vv := v.(type) </span>{
                         case int64:<span class="cov2" title="3">
@@ -861,142 +876,142 @@ func loadFromFile(path string, logger *log.Logger) (*App, error) <span class="co
                         }
                 }
         }
-        <span class="cov5" title="22">return &amp;tab, nil</span>
+        <span class="cov5" title="26">return &amp;tab, nil</span>
 }
 
-func (a *App) mergeWith(other *App) <span class="cov5" title="27">{
+func (a *App) mergeWith(other *App) <span class="cov5" title="33">{
         a.mergeBasics(other)
         a.mergeProviderFields(other)
         a.mergePrompts(other)
 }</span>
 
 // mergeBasics merges general (non-provider) fields.
-func (a *App) mergeBasics(other *App) <span class="cov6" title="43">{
-        if other.MaxTokens &gt; 0 </span><span class="cov3" title="7">{
+func (a *App) mergeBasics(other *App) <span class="cov6" title="53">{
+        if other.MaxTokens &gt; 0 </span><span class="cov4" title="17">{
                 a.MaxTokens = other.MaxTokens
         }</span>
-        <span class="cov6" title="43">if s := strings.TrimSpace(other.ContextMode); s != "" </span><span class="cov3" title="7">{
+        <span class="cov6" title="53">if s := strings.TrimSpace(other.ContextMode); s != "" </span><span class="cov3" title="7">{
                 a.ContextMode = s
         }</span>
-        <span class="cov6" title="43">if other.ContextWindowLines &gt; 0 </span><span class="cov3" title="7">{
+        <span class="cov6" title="53">if other.ContextWindowLines &gt; 0 </span><span class="cov3" title="7">{
                 a.ContextWindowLines = other.ContextWindowLines
         }</span>
-        <span class="cov6" title="43">if other.MaxContextTokens &gt; 0 </span><span class="cov3" title="7">{
+        <span class="cov6" title="53">if other.MaxContextTokens &gt; 0 </span><span class="cov3" title="7">{
                 a.MaxContextTokens = other.MaxContextTokens
         }</span>
-        <span class="cov6" title="43">if other.LogPreviewLimit &gt;= 0 </span><span class="cov6" title="43">{
+        <span class="cov6" title="53">if other.LogPreviewLimit &gt;= 0 </span><span class="cov6" title="53">{
                 a.LogPreviewLimit = other.LogPreviewLimit
         }</span>
-        <span class="cov6" title="43">if other.CodingTemperature != nil </span><span class="cov3" title="7">{ // allow explicit 0.0
+        <span class="cov6" title="53">if other.CodingTemperature != nil </span><span class="cov3" title="7">{ // allow explicit 0.0
                 a.CodingTemperature = other.CodingTemperature
         }</span>
-        <span class="cov6" title="43">if other.ManualInvokeMinPrefix &gt;= 0 </span><span class="cov6" title="43">{
+        <span class="cov6" title="53">if other.ManualInvokeMinPrefix &gt;= 0 </span><span class="cov6" title="53">{
                 a.ManualInvokeMinPrefix = other.ManualInvokeMinPrefix
         }</span>
-        <span class="cov6" title="43">if other.CompletionDebounceMs &gt; 0 </span><span class="cov3" title="7">{
+        <span class="cov6" title="53">if other.CompletionDebounceMs &gt; 0 </span><span class="cov3" title="7">{
                 a.CompletionDebounceMs = other.CompletionDebounceMs
         }</span>
-        <span class="cov6" title="43">if other.CompletionThrottleMs &gt; 0 </span><span class="cov3" title="7">{
+        <span class="cov6" title="53">if other.CompletionThrottleMs &gt; 0 </span><span class="cov3" title="7">{
                 a.CompletionThrottleMs = other.CompletionThrottleMs
         }</span>
-        <span class="cov6" title="43">if len(other.TriggerCharacters) &gt; 0 </span><span class="cov3" title="7">{
+        <span class="cov6" title="53">if len(other.TriggerCharacters) &gt; 0 </span><span class="cov3" title="7">{
                 a.TriggerCharacters = slices.Clone(other.TriggerCharacters)
         }</span>
-        <span class="cov6" title="43">if s := strings.TrimSpace(other.InlineOpen); s != "" </span><span class="cov1" title="2">{
+        <span class="cov6" title="53">if s := strings.TrimSpace(other.InlineOpen); s != "" </span><span class="cov1" title="2">{
                 a.InlineOpen = s
         }</span>
-        <span class="cov6" title="43">if s := strings.TrimSpace(other.InlineClose); s != "" </span><span class="cov1" title="2">{
+        <span class="cov6" title="53">if s := strings.TrimSpace(other.InlineClose); s != "" </span><span class="cov1" title="2">{
                 a.InlineClose = s
         }</span>
-        <span class="cov6" title="43">if s := strings.TrimSpace(other.ChatSuffix); s != "" </span><span class="cov1" title="2">{
+        <span class="cov6" title="53">if s := strings.TrimSpace(other.ChatSuffix); s != "" </span><span class="cov1" title="2">{
                 a.ChatSuffix = s
         }</span>
-        <span class="cov6" title="43">if len(other.ChatPrefixes) &gt; 0 </span><span class="cov1" title="2">{
+        <span class="cov6" title="53">if len(other.ChatPrefixes) &gt; 0 </span><span class="cov1" title="2">{
                 a.ChatPrefixes = slices.Clone(other.ChatPrefixes)
         }</span>
-        <span class="cov6" title="43">if s := strings.TrimSpace(other.Provider); s != "" </span><span class="cov4" title="13">{
+        <span class="cov6" title="53">if s := strings.TrimSpace(other.Provider); s != "" </span><span class="cov4" title="13">{
                 a.Provider = s
         }</span>
 }
 
 // mergePrompts copies non-empty prompt templates from other.
-func (a *App) mergePrompts(other *App) <span class="cov5" title="27">{
+func (a *App) mergePrompts(other *App) <span class="cov5" title="33">{
         // Completion
         if strings.TrimSpace(other.PromptCompletionSystemGeneral) != "" </span><span class="cov1" title="1">{
                 a.PromptCompletionSystemGeneral = other.PromptCompletionSystemGeneral
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCompletionSystemParams) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCompletionSystemParams) != "" </span><span class="cov1" title="1">{
                 a.PromptCompletionSystemParams = other.PromptCompletionSystemParams
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCompletionSystemInline) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCompletionSystemInline) != "" </span><span class="cov1" title="1">{
                 a.PromptCompletionSystemInline = other.PromptCompletionSystemInline
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCompletionUserGeneral) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCompletionUserGeneral) != "" </span><span class="cov1" title="1">{
                 a.PromptCompletionUserGeneral = other.PromptCompletionUserGeneral
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCompletionUserParams) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCompletionUserParams) != "" </span><span class="cov1" title="1">{
                 a.PromptCompletionUserParams = other.PromptCompletionUserParams
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCompletionExtraHeader) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCompletionExtraHeader) != "" </span><span class="cov1" title="1">{
                 a.PromptCompletionExtraHeader = other.PromptCompletionExtraHeader
         }</span>
         // Provider-native
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptNativeCompletion) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptNativeCompletion) != "" </span><span class="cov1" title="1">{
                 a.PromptNativeCompletion = other.PromptNativeCompletion
         }</span>
         // Chat
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptChatSystem) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptChatSystem) != "" </span><span class="cov1" title="1">{
                 a.PromptChatSystem = other.PromptChatSystem
         }</span>
         // Code actions
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCodeActionRewriteSystem) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCodeActionRewriteSystem) != "" </span><span class="cov1" title="1">{
                 a.PromptCodeActionRewriteSystem = other.PromptCodeActionRewriteSystem
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCodeActionDiagnosticsSystem) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCodeActionDiagnosticsSystem) != "" </span><span class="cov1" title="1">{
                 a.PromptCodeActionDiagnosticsSystem = other.PromptCodeActionDiagnosticsSystem
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCodeActionDocumentSystem) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCodeActionDocumentSystem) != "" </span><span class="cov1" title="1">{
                 a.PromptCodeActionDocumentSystem = other.PromptCodeActionDocumentSystem
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCodeActionRewriteUser) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCodeActionRewriteUser) != "" </span><span class="cov1" title="1">{
                 a.PromptCodeActionRewriteUser = other.PromptCodeActionRewriteUser
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCodeActionDiagnosticsUser) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCodeActionDiagnosticsUser) != "" </span><span class="cov1" title="1">{
                 a.PromptCodeActionDiagnosticsUser = other.PromptCodeActionDiagnosticsUser
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCodeActionDocumentUser) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCodeActionDocumentUser) != "" </span><span class="cov1" title="1">{
                 a.PromptCodeActionDocumentUser = other.PromptCodeActionDocumentUser
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCodeActionGoTestSystem) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCodeActionGoTestSystem) != "" </span><span class="cov1" title="1">{
                 a.PromptCodeActionGoTestSystem = other.PromptCodeActionGoTestSystem
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCodeActionGoTestUser) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCodeActionGoTestUser) != "" </span><span class="cov1" title="1">{
                 a.PromptCodeActionGoTestUser = other.PromptCodeActionGoTestUser
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCodeActionSimplifySystem) != "" </span><span class="cov0" title="0">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCodeActionSimplifySystem) != "" </span><span class="cov0" title="0">{
                 a.PromptCodeActionSimplifySystem = other.PromptCodeActionSimplifySystem
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCodeActionSimplifyUser) != "" </span><span class="cov0" title="0">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCodeActionSimplifyUser) != "" </span><span class="cov0" title="0">{
                 a.PromptCodeActionSimplifyUser = other.PromptCodeActionSimplifyUser
         }</span>
         // CLI
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCLIDefaultSystem) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCLIDefaultSystem) != "" </span><span class="cov1" title="1">{
                 a.PromptCLIDefaultSystem = other.PromptCLIDefaultSystem
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.PromptCLIExplainSystem) != "" </span><span class="cov1" title="1">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.PromptCLIExplainSystem) != "" </span><span class="cov1" title="1">{
                 a.PromptCLIExplainSystem = other.PromptCLIExplainSystem
         }</span>
         // Custom actions
-        <span class="cov5" title="27">if len(other.CustomActions) &gt; 0 </span><span class="cov4" title="16">{
+        <span class="cov5" title="33">if len(other.CustomActions) &gt; 0 </span><span class="cov4" title="16">{
                 a.CustomActions = append([]CustomAction{}, other.CustomActions...)
         }</span>
-        <span class="cov5" title="27">if strings.TrimSpace(other.TmuxCustomMenuHotkey) != "" </span><span class="cov2" title="3">{
+        <span class="cov5" title="33">if strings.TrimSpace(other.TmuxCustomMenuHotkey) != "" </span><span class="cov2" title="3">{
                 a.TmuxCustomMenuHotkey = other.TmuxCustomMenuHotkey
         }</span>
 }
 
 // Validate checks custom actions and tmux settings for duplicates and consistency.
-func (a App) Validate() error <span class="cov5" title="19">{
+func (a App) Validate() error <span class="cov5" title="22">{
         // Normalize and check duplicates for IDs and hotkeys
         seenID := make(map[string]struct{})
         seenHK := make(map[string]struct{})
@@ -1039,7 +1054,7 @@ func (a App) Validate() error <span class="cov5" title="19">{
                 }
         }
         // Tmux custom menu hotkey validation
-        <span class="cov4" title="14">if hk := strings.TrimSpace(a.TmuxCustomMenuHotkey); hk != "" </span><span class="cov1" title="2">{
+        <span class="cov4" title="17">if hk := strings.TrimSpace(a.TmuxCustomMenuHotkey); hk != "" </span><span class="cov1" title="2">{
                 if len([]rune(hk)) != 1 </span><span class="cov0" title="0">{
                         return fmt.Errorf("config: invalid tmux.custom_menu_hotkey: %s", hk)
                 }</span>
@@ -1049,43 +1064,43 @@ func (a App) Validate() error <span class="cov5" title="19">{
                         return fmt.Errorf("config: invalid tmux.custom_menu_hotkey: %s (clashes with built-in)", hk)</span>
                 }
         }
-        <span class="cov4" title="13">return nil</span>
+        <span class="cov4" title="16">return nil</span>
 }
 
 // mergeProviderFields merges per-provider configuration.
-func (a *App) mergeProviderFields(other *App) <span class="cov5" title="37">{
+func (a *App) mergeProviderFields(other *App) <span class="cov6" title="43">{
         if s := strings.TrimSpace(other.OpenAIBaseURL); s != "" </span><span class="cov3" title="7">{
                 a.OpenAIBaseURL = s
         }</span>
-        <span class="cov5" title="37">if s := strings.TrimSpace(other.OpenAIModel); s != "" </span><span class="cov4" title="13">{
+        <span class="cov6" title="43">if s := strings.TrimSpace(other.OpenAIModel); s != "" </span><span class="cov4" title="13">{
                 a.OpenAIModel = s
         }</span>
-        <span class="cov5" title="37">if other.OpenAITemperature != nil </span><span class="cov3" title="7">{ // allow explicit 0.0
+        <span class="cov6" title="43">if other.OpenAITemperature != nil </span><span class="cov3" title="7">{ // allow explicit 0.0
                 a.OpenAITemperature = other.OpenAITemperature
         }</span>
-        <span class="cov5" title="37">if s := strings.TrimSpace(other.OllamaBaseURL); s != "" </span><span class="cov3" title="7">{
+        <span class="cov6" title="43">if s := strings.TrimSpace(other.OllamaBaseURL); s != "" </span><span class="cov3" title="7">{
                 a.OllamaBaseURL = s
         }</span>
-        <span class="cov5" title="37">if s := strings.TrimSpace(other.OllamaModel); s != "" </span><span class="cov3" title="7">{
+        <span class="cov6" title="43">if s := strings.TrimSpace(other.OllamaModel); s != "" </span><span class="cov3" title="7">{
                 a.OllamaModel = s
         }</span>
-        <span class="cov5" title="37">if other.OllamaTemperature != nil </span><span class="cov3" title="7">{ // allow explicit 0.0
+        <span class="cov6" title="43">if other.OllamaTemperature != nil </span><span class="cov3" title="7">{ // allow explicit 0.0
                 a.OllamaTemperature = other.OllamaTemperature
         }</span>
-        <span class="cov5" title="37">if s := strings.TrimSpace(other.CopilotBaseURL); s != "" </span><span class="cov3" title="7">{
+        <span class="cov6" title="43">if s := strings.TrimSpace(other.CopilotBaseURL); s != "" </span><span class="cov3" title="7">{
                 a.CopilotBaseURL = s
         }</span>
-        <span class="cov5" title="37">if s := strings.TrimSpace(other.CopilotModel); s != "" </span><span class="cov3" title="7">{
+        <span class="cov6" title="43">if s := strings.TrimSpace(other.CopilotModel); s != "" </span><span class="cov3" title="7">{
                 a.CopilotModel = s
         }</span>
-        <span class="cov5" title="37">if other.CopilotTemperature != nil </span><span class="cov3" title="7">{ // allow explicit 0.0
+        <span class="cov6" title="43">if other.CopilotTemperature != nil </span><span class="cov3" title="7">{ // allow explicit 0.0
                 a.CopilotTemperature = other.CopilotTemperature
         }</span>
 }
 
-func getConfigPath() (string, error) <span class="cov5" title="28">{
+func getConfigPath() (string, error) <span class="cov5" title="32">{
         var configPath string
-        if xdgConfigHome := os.Getenv("XDG_CONFIG_HOME"); xdgConfigHome != "" </span><span class="cov4" title="18">{
+        if xdgConfigHome := os.Getenv("XDG_CONFIG_HOME"); xdgConfigHo