Rename binary from geheim to foostore

- go.mod: module path codeberg.org/snonux/geheim → codeberg.org/snonux/foostore
- cmd/geheim/ → cmd/foostore/
- Magefile.go: binary/binaryName/mainPkg constants updated
- internal/config: config file path ~/.config/geheim.json → ~/.config/foostore.json
- All import paths and comments updated throughout
- Delete geheim.rb (the original Ruby implementation, superseded by this Go rewrite)
- CLAUDE.md rewritten to reflect the Go implementation, new binary name,
  build system (mage), and current package architecture

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2 files changed, 5 insertions, 5 deletions

diff --git a/internal/config/config.go b/internal/config/config.go
index f48a046..6354d83 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -14,7 +14,7 @@ import (
 )
 
 // configPath is the location of the optional user config file.
-const configPath = "~/.config/geheim.json"
+const configPath = "~/.config/foostore.json"
 
 // Config holds all application-wide configuration values.
 // JSON field names use snake_case to match geheim.rb Config::DEFAULTS keys.
diff --git a/internal/config/config_test.go b/internal/config/config_test.go
index ae2d6c1..3f8ace9 100644
--- a/internal/config/config_test.go
+++ b/internal/config/config_test.go
@@ -9,7 +9,7 @@ import (
 	"testing"
 )
 
-// writeUserConfig creates the ~/.config/geheim.json file inside the given
+// writeUserConfig creates the ~/.config/foostore.json file inside the given
 // HOME directory (which must already exist).  Used to exercise Load() directly.
 func writeUserConfig(t *testing.T, home, content string) {
 	t.Helper()
@@ -17,7 +17,7 @@ func writeUserConfig(t *testing.T, home, content string) {
 	if err := os.MkdirAll(cfgDir, 0o755); err != nil {
 		t.Fatalf("MkdirAll: %v", err)
 	}
-	path := filepath.Join(cfgDir, "geheim.json")
+	path := filepath.Join(cfgDir, "foostore.json")
 	if err := os.WriteFile(path, []byte(content), 0o600); err != nil {
 		t.Fatalf("WriteFile: %v", err)
 	}
@@ -167,7 +167,7 @@ func TestLoad_invalid_json(t *testing.T) {
 // TestLoad_missing_file_no_warning verifies that a missing config file does NOT
 // produce any output — absence is normal for a first-run or unconfigured install.
 func TestLoad_missing_file_no_warning(t *testing.T) {
-	dir := t.TempDir() // no geheim.json inside
+	dir := t.TempDir() // no foostore.json inside
 	t.Setenv("HOME", dir)
 
 	stderr := captureStderr(func() { _ = Load() })
@@ -188,7 +188,7 @@ func TestLoad_unreadable_file(t *testing.T) {
 	writeUserConfig(t, dir, `{"edit_cmd":"nvim"}`)
 
 	// Make the file unreadable.
-	cfgPath := filepath.Join(dir, ".config", "geheim.json")
+	cfgPath := filepath.Join(dir, ".config", "foostore.json")
 	if err := os.Chmod(cfgPath, 0o000); err != nil {
 		t.Fatalf("Chmod: %v", err)
 	}