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, 93 insertions, 0 deletions

diff --git a/renderer/src/styles/globals.css b/renderer/src/styles/globals.css
index 61a37c0..8e43f3a 100644
--- a/renderer/src/styles/globals.css
+++ b/renderer/src/styles/globals.css
@@ -905,3 +905,96 @@ html[data-theme="light"] .settings-textarea:focus {
   background: var(--bg-tertiary);
   color: var(--text-primary);
 }
+
+/* ── Settings Toggle Row ─────────────────────────────────────── */
+.settings-toggle-row {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  margin-top: 16px;
+}
+
+.settings-toggle-label {
+  display: flex;
+  align-items: flex-start;
+  gap: 14px;
+  cursor: pointer;
+  flex: 1;
+}
+
+.settings-toggle-text {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+  font-size: 12px;
+  color: var(--text-primary);
+  line-height: 1.4;
+}
+
+.settings-toggle-hint {
+  color: var(--text-secondary);
+  font-size: 11px;
+}
+
+.settings-toggle-hint code {
+  font-family: monospace;
+  background: var(--bg-tertiary);
+  padding: 1px 3px;
+  border-radius: 2px;
+}
+
+/* The pill toggle switch */
+.settings-toggle {
+  flex-shrink: 0;
+  width: 36px;
+  height: 20px;
+  border-radius: 10px;
+  background: var(--border);
+  position: relative;
+  cursor: pointer;
+  transition: background 0.2s;
+  outline-offset: 2px;
+}
+
+.settings-toggle:focus-visible {
+  outline: 2px solid var(--accent);
+}
+
+.settings-toggle::after {
+  content: "";
+  position: absolute;
+  top: 3px;
+  left: 3px;
+  width: 14px;
+  height: 14px;
+  border-radius: 50%;
+  background: var(--text-secondary);
+  transition: transform 0.2s, background 0.2s;
+}
+
+.settings-toggle.on {
+  background: var(--accent);
+}
+
+.settings-toggle.on::after {
+  transform: translateX(16px);
+  background: #fff;
+}
+
+/* ── Header Maximize Button ──────────────────────────────────── */
+.maximize-btn {
+  padding: 5px 8px;
+  background: transparent;
+  border: 1px solid var(--border);
+  border-radius: 2px;
+  color: var(--text-secondary);
+  cursor: pointer;
+  font-size: 13px;
+  font-family: inherit;
+  transition: background 0.15s, color 0.15s;
+}
+
+.maximize-btn:hover {
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
+}