feat: **1. `src/main/db/schema.ts`** — add `settings` table … (+10 more)

- ✅ **1. `src/main/db/schema.ts`** — add `settings` table to `initSchema`
- ✅ **2. `src/main/db/settings.ts`** — create file with `getSetting`, `getSettings`, `setSetting`, `deleteSetting`
- ✅ **3. `src/main/claude/phases.ts`** — add `customSystemPrompt?` param to `getPhaseConfig`; add `getDefaultSystemPromptTemplate` export
- ✅ **4. `src/main/claude/index.ts`** — import `getSetting`; load custom prompt in `sendMessage`; pass to `getPhaseConfig`
- ✅ **5. `src/main/ipc/handlers.ts`** — import `settingsDb` + `getDefaultSystemPromptTemplate`; register `settings:get`, `settings:set`, `settings:delete`, `settings:getDefaultPrompts`
- ✅ **6. `src/main/preload.ts`** — add `getSettings`, `setSetting`, `deleteSetting`, `getDefaultSystemPrompts` to interface + api object
- ✅ **7. `renderer/src/styles/globals.css`** — append all new CSS rules
- ✅ **8. `renderer/src/components/settings/SystemPromptsSettings.tsx`** — create file (new directory)
- ✅ **9. `renderer/src/components/SettingsPage.tsx`** — create file
- ✅ **10. `renderer/src/components/Header.tsx`** — add `onOpenSettings` prop + ⚙ button
- ✅ **11. `renderer/src/App.tsx`** — add `showSettings` state; import + render `<SettingsPage>`; pass `onOpenSettings` to Header

1 files changed, 12 insertions, 0 deletions

diff --git a/src/main/preload.ts b/src/main/preload.ts
index 299a1b5..52e947b 100644
--- a/src/main/preload.ts
+++ b/src/main/preload.ts
@@ -54,6 +54,12 @@ export interface ClaudeFlowAPI {
     callback: (sessionId: string, message: SDKMessage) => void
   ) => () => void;
 
+  // Settings
+  getSettings: (keys: string[]) => Promise<Record<string, string | null>>;
+  setSetting: (key: string, value: string) => Promise<void>;
+  deleteSetting: (key: string) => Promise<void>;
+  getDefaultSystemPrompts: () => Promise<Record<"research" | "plan" | "implement", string>>;
+
   // Dialogs
   selectDirectory: () => Promise<string | null>;
 }
@@ -110,6 +116,12 @@ const api: ClaudeFlowAPI = {
     return () => ipcRenderer.removeListener("claude:message", handler);
   },
 
+  // Settings
+  getSettings: (keys) => ipcRenderer.invoke("settings:get", keys),
+  setSetting: (key, value) => ipcRenderer.invoke("settings:set", key, value),
+  deleteSetting: (key) => ipcRenderer.invoke("settings:delete", key),
+  getDefaultSystemPrompts: () => ipcRenderer.invoke("settings:getDefaultPrompts"),
+
   // Dialogs
   selectDirectory: async () => {
     const result = await ipcRenderer.invoke("dialog:selectDirectory");