feat: **1 — `git.ts`:** Add exported `getCurrentBranch` helpe… (+8 more)

- ✅ **1 — `git.ts`:** Add exported `getCurrentBranch` helper after `ensureGitRepo`
- ✅ **2a — `ipc/handlers.ts`:** Update git import to include `ensureGitRepo` and `getCurrentBranch`
- ✅ **2b — `ipc/handlers.ts`:** Replace `workflow:advance` implement-phase block with branching-toggle logic
- ✅ **3 — `GitSettings.tsx`:** Create new settings component with pill toggle
- ✅ **4 — `SettingsPage.tsx`:** Add `"git"` section type, import, nav item, content render; fix both unicode glyphs
- ✅ **5 — `globals.css`:** Append toggle-row + pill toggle + maximize-btn CSS
- ✅ **6 — `index.ts`:** Add `ipcMain` to import; add `window:toggleMaximize` handler + maximize/unmaximize events inside `createWindow()`
- ✅ **7 — `preload.ts`:** Add `toggleMaximize` + `onWindowMaximized` to interface and `api` object
- ✅ **8 — `Header.tsx`:** Add `isMaximized` state + effect + maximize button in JSX

1 files changed, 12 insertions, 0 deletions

diff --git a/src/main/preload.ts b/src/main/preload.ts
index 52e947b..44467db 100644
--- a/src/main/preload.ts
+++ b/src/main/preload.ts
@@ -62,6 +62,10 @@ export interface ClaudeFlowAPI {
 
   // Dialogs
   selectDirectory: () => Promise<string | null>;
+
+  // Window
+  toggleMaximize: () => Promise<void>;
+  onWindowMaximized: (cb: (isMaximized: boolean) => void) => () => void;
 }
 
 const api: ClaudeFlowAPI = {
@@ -127,6 +131,14 @@ const api: ClaudeFlowAPI = {
     const result = await ipcRenderer.invoke("dialog:selectDirectory");
     return result;
   },
+
+  // Window
+  toggleMaximize: () => ipcRenderer.invoke("window:toggleMaximize"),
+  onWindowMaximized: (cb) => {
+    const handler = (_: IpcRendererEvent, val: boolean) => cb(val);
+    ipcRenderer.on("window:maximized", handler);
+    return () => ipcRenderer.removeListener("window:maximized", handler);
+  },
 };
 
 contextBridge.exposeInMainWorld("api", api);