feat: Claude Code Monitor — lanes, pipelines and a merged workspace

Internal SmartGift build of a Claude Code monitoring dashboard. Lanes: a durable unit of parallel agent work, one per working directory, tracked across session restarts. Managed lanes are git worktrees the dashboard provisions and can reset or remove behind a three-check destroy guard and a counted preflight; adopted lanes are directories you already own and are never destroyable. Pipelines: a lane moves through pipeline stages. A stage the agent declares with evidence renders green; a stage inferred from the tool-event stream renders dashed amber and never counts as done. Detection is forward-only within a 30-minute window, and never writes the declared stage. Workspace: one page at /run with a lane grid, the selected lane's pipeline, and a full Claude console behind a disclosure.
2026-07-29 17:07:45 +07:00
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+/**
+ * @file prefs.ts
+ * @description Tiny localStorage-backed preference store for Tabby (enabled +
+ *   muted). Broadcasts changes via a window CustomEvent so the Settings toggle
+ *   and the live widget stay in sync within the same tab without a reload.
+ * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
+ */
+/* =============================================================================
+ * MODULE_GUIDE — extended in-file reference (comments only; safe to read, never executed)
+ * =============================================================================
+ * **Purpose:** Tabby is the optional on-screen cat assistant — quips, intents, and lightweight event reactions layered above the dashboard chrome.
+ *
+ * ## Design constraints
+ * - Local-first: no telemetry leaves the machine unless the user configures webhooks.
+ * - Fail-safe hooks path on the server must never block Claude Code; UI mirrors that
+ *   philosophy by degrading gracefully (empty states, stale badges, reconnect loops).
+ * - Destructive flows stay behind explicit confirmation modals and server-side gates.
+ * - Internationalization: user-visible strings belong in i18n JSON, not literals here.
+ *
+ * ## Remote data & SSH
+ * Remote Data Sources let operators aggregate multiple machines. SSH entries describe
+ * how to reach a peer dashboard; the global data scope (`dataScope.ts`) narrows every
+ * scoped GET via `?sources=`. Health checks and import history surface in Settings.
+ *
+ * ## Observability
+ * Prometheus scrapes `GET /api/metrics` (see `monitoring/`). Grafana ships four
+ * provisioned boards (overview, sessions, tools, alerts). Native npm scripts and
+ * Docker Compose profiles are documented in `monitoring/README.md`.
+ *
+ * ## Public surface
+ * - `TabbyPos` — exported API; see TSDoc on the symbol for behavior.
+ * - `tabbyPrefs` — exported API; see TSDoc on the symbol for behavior.
+ *
+ * ## Testing pointers
+ * - Prefer colocated `__tests__` with Vitest + Testing Library for UI.
+ * - Server contract changes require `npm run test:server` and OpenAPI sync.
+ * - MCP edits: `npm run mcp:typecheck` and `npm run mcp:build`.
+ *
+ * ## Related docs
+ * - `ARCHITECTURE.md` — hooks → API → SQLite → WebSocket → UI pipeline.
+ * - `docs/API.md` — REST reference.
+ * - `.claude/skills/file-headers/` — mandatory `@author` header policy.
+ * ============================================================================= */
+/* -----------------------------------------------------------------------------
+ * EXPORT CATALOG — quick index of symbols defined below (documentation only).
+ * -----------------------------------------------------------------------------
+ * **TabbyPos**
+ *   Part of this module's public contract. Downstream imports should treat
+ *   the signature and return type as stable unless release notes say otherwise.
+ *   When behavior changes, update the `@file` overview and relevant tests.
+ *
+ * **tabbyPrefs**
+ *   Part of this module's public contract. Downstream imports should treat
+ *   the signature and return type as stable unless release notes say otherwise.
+ *   When behavior changes, update the `@file` overview and relevant tests.
+ *
+ * ----------------------------------------------------------------------------- */
+
+const ENABLED_KEY = "agent-dashboard-tabby-enabled";
+const MUTED_KEY = "agent-dashboard-tabby-muted";
+const POS_KEY = "agent-dashboard-tabby-pos";
+const EVENT = "tabby:prefs";
+
+/**
+ * Persisted resting position, AssistiveTouch-style: the widget always docks to
+ * the left or right edge, remembering its vertical offset. `y` is stored as a
+ * fraction of the viewport height (0–1) so it survives window resizes.
+ */
+export interface TabbyPos {
+  side: "left" | "right";
+  y: number;
+}
+
+function readBool(key: string, fallback: boolean): boolean {
+  try {
+    const v = localStorage.getItem(key);
+    return v === null ? fallback : v === "true";
+  } catch {
+    return fallback;
+  }
+}
+
+function writeBool(key: string, value: boolean): void {
+  try {
+    localStorage.setItem(key, String(value));
+  } catch {
+    // Ignore storage failures (private mode, quota) - prefs are best-effort.
+  }
+  try {
+    window.dispatchEvent(new CustomEvent(EVENT));
+  } catch {
+    // SSR / non-DOM contexts: nothing to notify.
+  }
+}
+
+function readPos(): TabbyPos | null {
+  try {
+    const raw = localStorage.getItem(POS_KEY);
+    if (!raw) return null;
+    const p = JSON.parse(raw) as Partial<TabbyPos>;
+    if ((p.side === "left" || p.side === "right") && typeof p.y === "number") {
+      return { side: p.side, y: Math.min(1, Math.max(0, p.y)) };
+    }
+    return null;
+  } catch {
+    return null;
+  }
+}
+
+function writePos(pos: TabbyPos): void {
+  try {
+    localStorage.setItem(POS_KEY, JSON.stringify(pos));
+  } catch {
+    // Ignore storage failures - position is best-effort.
+  }
+  // Note: intentionally does NOT dispatch the prefs event - position changes
+  // are local to the widget and shouldn't churn the Settings toggle listeners.
+}
+
+export const tabbyPrefs = {
+  getEnabled: () => readBool(ENABLED_KEY, true),
+  setEnabled: (v: boolean) => writeBool(ENABLED_KEY, v),
+  getMuted: () => readBool(MUTED_KEY, false),
+  setMuted: (v: boolean) => writeBool(MUTED_KEY, v),
+  getPos: readPos,
+  setPos: writePos,
+  /** Subscribe to any pref change; returns an unsubscribe fn. */
+  subscribe(handler: () => void): () => void {
+    const listener = () => handler();
+    window.addEventListener(EVENT, listener);
+    // Also react to changes from other tabs.
+    window.addEventListener("storage", listener);
+    return () => {
+      window.removeEventListener(EVENT, listener);
+      window.removeEventListener("storage", listener);
+    };
+  },
+};