refactor: enforce Go best practices (function size, ordering, formatting)

- config: split set() (62L) into setSizeAndTuning() + setDisplayFlags()
- collector: split Run() (70L) into Run + startLocalScanner + startRemoteScanner
  + parseCollectorStream + dispatchCollectorLine; each <30L
- collector: remove unused script_embed.go (RemoteScript was dead code)
- display: move newRunState constructor before Run() per constructor-first rule
- display: replace loadPeak IIFE with a plain initLoadPeak variable
- display: split handleKey() (114L) into handleToggleKeys + handleAdjustAndSave
  + handleResizeKeys; add nil guard in handleResizeKeys for test safety
- display: split drawNetBarSmoothed() (75L) into drawNetBarSmoothed +
  smoothNetUtilization + drawNetHalves; each <30L
- all: gofmt -w to fix formatting drift in display and config files

All tests pass (go test ./...).

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

1 files changed, 4 insertions, 4 deletions

diff --git a/internal/display/tooltip_test.go b/internal/display/tooltip_test.go
index e4f6afc..0d4dc57 100644
--- a/internal/display/tooltip_test.go
+++ b/internal/display/tooltip_test.go
@@ -261,10 +261,10 @@ func TestTooltipLines_Mem(t *testing.T) {
 		"myhost": {
 			CPU: map[string]collector.CPULine{"cpu": {}},
 			Mem: map[string]int64{
-				"MemTotal":  8*1024*1024, // 8 GB in KB
-				"MemFree":   2*1024*1024,
-				"SwapTotal": 4*1024*1024,
-				"SwapFree":  3*1024*1024,
+				"MemTotal":  8 * 1024 * 1024, // 8 GB in KB
+				"MemFree":   2 * 1024 * 1024,
+				"SwapTotal": 4 * 1024 * 1024,
+				"SwapFree":  3 * 1024 * 1024,
 			},
 		},
 	}