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, 78 insertions, 0 deletions

diff --git a/renderer/src/components/settings/GitSettings.tsx b/renderer/src/components/settings/GitSettings.tsx
new file mode 100644
index 0000000..0ec9875
--- /dev/null
+++ b/renderer/src/components/settings/GitSettings.tsx
@@ -0,0 +1,78 @@
+import React, { useState, useEffect } from "react";
+
+const api = window.api;
+
+export function GitSettings() {
+  // null = setting not yet loaded; true/false = loaded value
+  const [branchingEnabled, setBranchingEnabled] = useState<boolean | null>(null);
+  const [saveStatus, setSaveStatus] = useState<"idle" | "saved">("idle");
+
+  useEffect(() => {
+    api.getSettings(["git.branchingEnabled"]).then((settings) => {
+      // Key absent or any value other than "true" → false (opt-in default)
+      setBranchingEnabled(settings["git.branchingEnabled"] === "true");
+    });
+  }, []);
+
+  const handleToggle = async (enabled: boolean) => {
+    setBranchingEnabled(enabled);
+    if (enabled) {
+      await api.setSetting("git.branchingEnabled", "true");
+    } else {
+      await api.deleteSetting("git.branchingEnabled");
+    }
+    setSaveStatus("saved");
+    setTimeout(() => setSaveStatus("idle"), 1500);
+  };
+
+  if (branchingEnabled === null) {
+    return (
+      <div style={{ color: "var(--text-secondary)", fontSize: 12 }}>
+        Loading...
+      </div>
+    );
+  }
+
+  return (
+    <div>
+      <div className="settings-section-title">Git</div>
+      <div className="settings-section-desc">
+        Configure how Claude Flow interacts with your project's git repository
+        during the implement phase.
+      </div>
+
+      <div className="settings-toggle-row">
+        <label className="settings-toggle-label" htmlFor="git-branching-toggle">
+          <span className="settings-toggle-text">
+            <strong>Create a branch per session</strong>
+            <span className="settings-toggle-hint">
+              When enabled, Claude Flow checks out a new{" "}
+              <code>claude-flow/&lt;name&gt;-&lt;id&gt;</code> branch when
+              entering the implement phase. When disabled, commits land on
+              your current branch.
+            </span>
+          </span>
+          <span
+            className={`settings-toggle${branchingEnabled ? " on" : ""}`}
+            role="switch"
+            aria-checked={branchingEnabled}
+            id="git-branching-toggle"
+            tabIndex={0}
+            onClick={() => handleToggle(!branchingEnabled)}
+            onKeyDown={(e) => {
+              if (e.key === " " || e.key === "Enter") {
+                e.preventDefault();
+                handleToggle(!branchingEnabled);
+              }
+            }}
+          />
+        </label>
+        {saveStatus === "saved" && (
+          <span className="settings-custom-badge" style={{ color: "var(--accent)" }}>
+            saved ✓
+          </span>
+        )}
+      </div>
+    </div>
+  );
+}