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, 23 insertions, 0 deletions

diff --git a/src/main/git.ts b/src/main/git.ts
index 20362a7..ec81e8f 100644
--- a/src/main/git.ts
+++ b/src/main/git.ts
@@ -58,6 +58,29 @@ export function ensureGitRepo(projectPath: string): void {
 }
 
 // ---------------------------------------------------------------------------
+// Current branch query
+// ---------------------------------------------------------------------------
+
+/**
+ * Returns the name of the currently checked-out branch,
+ * or null if git is unavailable or HEAD is detached.
+ */
+export function getCurrentBranch(projectPath: string): string | null {
+  try {
+    return (
+      execFileSync("git", ["branch", "--show-current"], {
+        cwd: projectPath,
+        stdio: "pipe",
+      })
+        .toString()
+        .trim() || null
+    );
+  } catch {
+    return null;
+  }
+}
+
+// ---------------------------------------------------------------------------
 // Branch creation
 // ---------------------------------------------------------------------------