feat(lanes): add Lanes section (skills install, housekeeping) to Settings (F4)

client/src/i18n/locales/en/settings.json

@@ -61,6 +61,15 @@
     "success": "Hooks installed successfully",
     "failed": "Hook installation failed"
   },
+  "lanesSection": {
+    "title": "Lanes",
+    "description": "Machine-wide housekeeping and one-time setup for the ship-feature-lane pipeline.",
+    "installSkill": "Install ship-feature-lane skill",
+    "installSkillSuccess": "Installed to {{path}}",
+    "runHousekeeping": "Run housekeeping",
+    "dryRun": "Dry run",
+    "gcResult": "Reaped {{reaped}} process(es), capped {{capped}} log(s)"
+  },
   "notifications": {
     "title": "Notifications",
     "description": "Browser notifications for important events. Requires permission.",

client/src/i18n/locales/vi/settings.json

@@ -61,6 +61,15 @@
     "success": "Cài hooks thành công",
     "failed": "Cài hooks thất bại"
   },
+  "lanesSection": {
+    "title": "Lanes",
+    "description": "Bảo trì toàn máy và cài đặt một lần cho pipeline ship-feature-lane.",
+    "installSkill": "Cài skill ship-feature-lane",
+    "installSkillSuccess": "Đã cài vào {{path}}",
+    "runHousekeeping": "Chạy dọn dẹp",
+    "dryRun": "Chạy thử (dry run)",
+    "gcResult": "Đã dọn {{reaped}} tiến trình, cắt {{capped}} log"
+  },
   "notifications": {
     "title": "Thông báo",
     "description": "Thông báo trình duyệt cho các sự kiện quan trọng. Cần cấp quyền.",

client/src/pages/Settings.tsx

@@ -132,6 +132,7 @@ const SETTINGS_SECTIONS: {
 }[] = [
   { id: "pricing", labelKey: "pricing.title", Icon: DollarSign },
   { id: "hooks", labelKey: "hooks.title", Icon: Plug },
+  { id: "lanes", labelKey: "lanesSection.title", Icon: GitBranch },
   { id: "claude-home", labelKey: "claudeHome.title", Icon: FolderOpen },
   { id: "import", labelKey: "import.title", fallback: "Import", Icon: History },
   {
@@ -468,6 +469,7 @@ export function Settings() {
   }, []);
   const [abandonHours, setAbandonHours] = useState("24");
   const [purgeDays, setPurgeDays] = useState("90");
+  const [gcDryRun, setGcDryRun] = useState(false);
   const [claudeHome, setClaudeHomeState] = useState("");
   const [claudeHomeInput, setClaudeHomeInput] = useState("");
   const [claudeHomeSaving, setClaudeHomeSaving] = useState(false);
@@ -727,6 +729,18 @@ export function Settings() {
       return res.ok ? t("hooks.success") : t("hooks.failed");
     });
 
+  const handleSkillsInstall = () =>
+    runAction("skills-install", async () => {
+      const res = await api.settings.skillsInstall();
+      return t("lanesSection.installSkillSuccess", { path: res.path });
+    });
+
+  const handleGc = () =>
+    runAction("gc", async () => {
+      const res = await api.settings.gc({ dryRun: gcDryRun });
+      return t("lanesSection.gcResult", { reaped: res.reaped.length, capped: res.capped.length });
+    });
+
   const handleResetPricing = () =>
     runAction("reset-pricing", async () => {
       const res = await api.settings.resetPricing();
@@ -1357,6 +1371,58 @@ export function Settings() {
         </div>
       </section>
 
+      {/* ─── LANES ─── */}
+      <section id="lanes" className="scroll-mt-24">
+        <h3 className="text-sm font-medium text-fg-secondary flex items-center gap-2 mb-1">
+          <GitBranch className="w-4 h-4 text-fg-muted" />
+          {t("lanesSection.title")}
+        </h3>
+        <p className="text-xs text-fg-muted mb-4">{t("lanesSection.description")}</p>
+
+        <div className="card p-5 space-y-4">
+          <div className="flex items-center justify-between flex-wrap gap-3">
+            <span className="text-xs text-fg-secondary">{t("lanesSection.installSkill")}</span>
+            <button
+              onClick={handleSkillsInstall}
+              disabled={actionLoading !== null}
+              className="btn-ghost text-xs disabled:opacity-50"
+            >
+              {actionLoading === "skills-install" ? (
+                <RefreshCw className="w-3.5 h-3.5 animate-spin" />
+              ) : (
+                <RotateCcw className="w-3.5 h-3.5" />
+              )}
+              {t("lanesSection.installSkill")}
+            </button>
+          </div>
+          {actionBanner(["skills-install"])}
+
+          <div className="flex items-center justify-between flex-wrap gap-3">
+            <label className="flex items-center gap-2 text-xs text-fg-secondary">
+              <input
+                type="checkbox"
+                checked={gcDryRun}
+                onChange={(e) => setGcDryRun(e.target.checked)}
+              />
+              {t("lanesSection.dryRun")}
+            </label>
+            <button
+              onClick={handleGc}
+              disabled={actionLoading !== null}
+              className="btn-ghost text-xs disabled:opacity-50"
+            >
+              {actionLoading === "gc" ? (
+                <RefreshCw className="w-3.5 h-3.5 animate-spin" />
+              ) : (
+                <RotateCcw className="w-3.5 h-3.5" />
+              )}
+              {t("lanesSection.runHousekeeping")}
+            </button>
+          </div>
+          {actionBanner(["gc"])}
+        </div>
+      </section>
+
       {/* ─── CLAUDE HOME ─── */}
       <section id="claude-home" className="scroll-mt-24">
         <h3 className="text-sm font-medium text-fg-secondary flex items-center gap-2 mb-1">

client/src/pages/__tests__/__snapshots__/screens.snapshot.test.tsx.snap

@@ -7522,6 +7522,44 @@ exports[`screen snapshots > Settings 1`] = `
           </svg>
           Hook Configuration
         </button>
+        <button
+          class="inline-flex items-center gap-1.5 text-xs whitespace-nowrap px-2.5 py-1.5 rounded-lg border transition-colors flex-shrink-0 border-border text-fg-secondary hover:text-fg-primary hover:bg-surface-3"
+          type="button"
+        >
+          <svg
+            class="lucide lucide-git-branch w-3.5 h-3.5"
+            fill="none"
+            height="24"
+            stroke="currentColor"
+            stroke-linecap="round"
+            stroke-linejoin="round"
+            stroke-width="2"
+            viewBox="0 0 24 24"
+            width="24"
+            xmlns="http://www.w3.org/2000/svg"
+          >
+            <line
+              x1="6"
+              x2="6"
+              y1="3"
+              y2="15"
+            />
+            <circle
+              cx="18"
+              cy="6"
+              r="3"
+            />
+            <circle
+              cx="6"
+              cy="18"
+              r="3"
+            />
+            <path
+              d="M18 9a9 9 0 0 1-9 9"
+            />
+          </svg>
+          Lanes
+        </button>
         <button
           class="inline-flex items-center gap-1.5 text-xs whitespace-nowrap px-2.5 py-1.5 rounded-lg border transition-colors flex-shrink-0 border-border text-fg-secondary hover:text-fg-primary hover:bg-surface-3"
           type="button"
@@ -8127,6 +8165,126 @@ exports[`screen snapshots > Settings 1`] = `
         </p>
       </div>
     </section>
+    <section
+      class="scroll-mt-24"
+      id="lanes"
+    >
+      <h3
+        class="text-sm font-medium text-fg-secondary flex items-center gap-2 mb-1"
+      >
+        <svg
+          class="lucide lucide-git-branch w-4 h-4 text-fg-muted"
+          fill="none"
+          height="24"
+          stroke="currentColor"
+          stroke-linecap="round"
+          stroke-linejoin="round"
+          stroke-width="2"
+          viewBox="0 0 24 24"
+          width="24"
+          xmlns="http://www.w3.org/2000/svg"
+        >
+          <line
+            x1="6"
+            x2="6"
+            y1="3"
+            y2="15"
+          />
+          <circle
+            cx="18"
+            cy="6"
+            r="3"
+          />
+          <circle
+            cx="6"
+            cy="18"
+            r="3"
+          />
+          <path
+            d="M18 9a9 9 0 0 1-9 9"
+          />
+        </svg>
+        Lanes
+      </h3>
+      <p
+        class="text-xs text-fg-muted mb-4"
+      >
+        Machine-wide housekeeping and one-time setup for the ship-feature-lane pipeline.
+      </p>
+      <div
+        class="card p-5 space-y-4"
+      >
+        <div
+          class="flex items-center justify-between flex-wrap gap-3"
+        >
+          <span
+            class="text-xs text-fg-secondary"
+          >
+            Install ship-feature-lane skill
+          </span>
+          <button
+            class="btn-ghost text-xs disabled:opacity-50"
+          >
+            <svg
+              class="lucide lucide-rotate-ccw w-3.5 h-3.5"
+              fill="none"
+              height="24"
+              stroke="currentColor"
+              stroke-linecap="round"
+              stroke-linejoin="round"
+              stroke-width="2"
+              viewBox="0 0 24 24"
+              width="24"
+              xmlns="http://www.w3.org/2000/svg"
+            >
+              <path
+                d="M3 12a9 9 0 1 0 9-9 9.75 9.75 0 0 0-6.74 2.74L3 8"
+              />
+              <path
+                d="M3 3v5h5"
+              />
+            </svg>
+            Install ship-feature-lane skill
+          </button>
+        </div>
+        <div
+          class="flex items-center justify-between flex-wrap gap-3"
+        >
+          <label
+            class="flex items-center gap-2 text-xs text-fg-secondary"
+          >
+            <input
+              type="checkbox"
+            />
+            Dry run
+          </label>
+          <button
+            class="btn-ghost text-xs disabled:opacity-50"
+          >
+            <svg
+              class="lucide lucide-rotate-ccw w-3.5 h-3.5"
+              fill="none"
+              height="24"
+              stroke="currentColor"
+              stroke-linecap="round"
+              stroke-linejoin="round"
+              stroke-width="2"
+              viewBox="0 0 24 24"
+              width="24"
+              xmlns="http://www.w3.org/2000/svg"
+            >
+              <path
+                d="M3 12a9 9 0 1 0 9-9 9.75 9.75 0 0 0-6.74 2.74L3 8"
+              />
+              <path
+                d="M3 3v5h5"
+              />
+            </svg>
+            Run housekeeping
+          </button>
+        </div>
+      </div>
+    </section>
     <section
       class="scroll-mt-24"
       id="claude-home"