Fix: Dev server detection bug fixes. Settings sync bug fixes. Cli provider fixes. Terminal background/foreground colors (#791)

* Changes from fix/dev-server-state-bug

* feat: Add configurable max turns setting with user overrides. Address pr comments

* fix: Update default behaviors and improve state management across server and UI

* feat: Extract branch sync logic to separate service. Fix settings sync bug. Address pr comments

* refactor: Extract magic numbers to named constants and improve branch tracking logic

- Add DEFAULT_MAX_TURNS (1000) and MAX_ALLOWED_TURNS (2000) constants to settings-helpers
- Replace hardcoded 1000 values with DEFAULT_MAX_TURNS constant throughout codebase
- Improve max turns validation with explicit Number.isFinite check
- Update getTrackingBranch to split on first slash instead of last for better remote parsing
- Change isBranchCheckedOut return type from boolean to string|null to return worktree path
- Add comments explaining skipFetch parameter in worktree creation
- Fix cleanup order in AgentExecutor finally block to run before logging
```

* feat: Add comment refresh and improve model sync in PR dialog

apps/ui/src/config/terminal-themes.ts

@@ -81,12 +81,12 @@ export function getTerminalFontFamily(fontValue: string | undefined): string {
   return fontValue;
 }
 
-// Dark theme (default)
+// Dark theme (default) - true black background with white foreground
 const darkTheme: TerminalTheme = {
-  background: '#0a0a0a',
-  foreground: '#d4d4d4',
-  cursor: '#d4d4d4',
-  cursorAccent: '#0a0a0a',
+  background: '#000000',
+  foreground: '#ffffff',
+  cursor: '#ffffff',
+  cursorAccent: '#000000',
   selectionBackground: '#264f78',
   black: '#1e1e1e',
   red: '#f44747',
@@ -626,4 +626,29 @@ export function getTerminalTheme(theme: ThemeMode): TerminalTheme {
   return terminalThemes[theme] || darkTheme;
 }
 
+/**
+ * Get terminal theme with optional custom color overrides
+ * @param theme - The app theme mode
+ * @param customBackgroundColor - Optional custom background color (hex string) to override theme default
+ * @param customForegroundColor - Optional custom foreground/text color (hex string) to override theme default
+ * @returns Terminal theme with custom colors if provided
+ */
+export function getTerminalThemeWithOverride(
+  theme: ThemeMode,
+  customBackgroundColor: string | null,
+  customForegroundColor?: string | null
+): TerminalTheme {
+  const baseTheme = getTerminalTheme(theme);
+
+  if (customBackgroundColor || customForegroundColor) {
+    return {
+      ...baseTheme,
+      ...(customBackgroundColor && { background: customBackgroundColor }),
+      ...(customForegroundColor && { foreground: customForegroundColor }),
+    };
+  }
+
+  return baseTheme;
+}
+
 export default terminalThemes;