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, 22 insertions, 5 deletions

diff --git a/src/main/ipc/handlers.ts b/src/main/ipc/handlers.ts
index bc7d78d..e0863f3 100644
--- a/src/main/ipc/handlers.ts
+++ b/src/main/ipc/handlers.ts
@@ -3,7 +3,7 @@ import * as projects from "../db/projects";
 import * as sessions from "../db/sessions";
 import * as claude from "../claude";
 import * as settingsDb from "../db/settings";
-import { createSessionBranch, ensureGitIgnore } from "../git";
+import { createSessionBranch, ensureGitIgnore, ensureGitRepo, getCurrentBranch } from "../git";
 import type { UserPermissionMode } from "../claude/phases";
 import { getDefaultSystemPromptTemplate } from "../claude/phases";
 
@@ -113,10 +113,27 @@ export function registerIpcHandlers(mainWindow: BrowserWindow): void {
     if (nextPhase === "implement") {
       const project = projects.getProject(session.project_id);
       if (project) {
-        const branchName = createSessionBranch(project.path, session.name, session.id);
-        if (branchName) {
-          sessions.updateSession(sessionId, { git_branch: branchName });
-          git_branch = branchName;
+        const branchingSetting = settingsDb.getSetting("git.branchingEnabled");
+        const branchingEnabled = branchingSetting === "true"; // opt-in; default = off
+
+        // Always ensure repo + gitignore so commits work regardless of mode
+        try { ensureGitIgnore(project.path); } catch { /* non-fatal */ }
+        try { ensureGitRepo(project.path); } catch { /* non-fatal */ }
+
+        if (branchingEnabled) {
+          // createSessionBranch internally calls ensureGitIgnore/ensureGitRepo again
+          // (belt-and-suspenders), then checks out a new claude-flow/<slug>-<id> branch
+          const branchName = createSessionBranch(project.path, session.name, session.id);
+          if (branchName) {
+            sessions.updateSession(sessionId, { git_branch: branchName });
+            git_branch = branchName;
+          }
+        } else {
+          // No new branch — commit to whatever branch is currently checked out.
+          // Store the branch name so autoCommitTurn's boolean guard passes.
+          const currentBranch = getCurrentBranch(project.path) ?? "main";
+          sessions.updateSession(sessionId, { git_branch: currentBranch });
+          git_branch = currentBranch;
         }
       }
     }