v0.25.0 — Debug page: operator testing & diagnostics dashboard

Debug-mode-only dashboard (/debug) with 8 collapsible sections:
system diagnostics, notification testing, backup triggers, storage
simulation, hub & connectivity, self-update dry-run, DR/setup wizard,
and in-memory log viewer. Migrates debug dump from API router to web
server. Adds ring buffer log capture, storage disconnect simulation,
event history tracking, and cross-drive/self-update test methods.

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

controller/internal/setup/setup.go

@@ -12,9 +12,21 @@ import (
 )
 
 // NeedsSetup checks whether the controller should enter setup mode.
-// Setup is needed when no customer ID has been configured (empty string).
+// Setup is needed when no customer ID has been configured (empty string)
+// or when a debug-triggered setup marker file exists.
 func NeedsSetup(cfg *config.Config) bool {
-	return cfg.Customer.ID == ""
+	if cfg.Customer.ID == "" {
+		return true
+	}
+	if _, err := os.Stat(filepath.Join(cfg.Paths.DataDir, ".needs-setup")); err == nil {
+		return true
+	}
+	return false
+}
+
+// ClearSetupMarker removes the debug-triggered setup marker file.
+func ClearSetupMarker(dataDir string) {
+	os.Remove(filepath.Join(dataDir, ".needs-setup"))
 }
 
 // SetupState persists wizard progress to survive browser crashes.