feat: v2.5.12 — plan and quota for every AI tool, Grok Build and Kimi Code, Quit AgentHub (#65)

Usage panel (status bar):
- every account shows its plan (Claude subscriptionType, Codex
  chatgpt_plan_type, Cursor membershipType, Grok subscriptionTier)
- new quota rows: Cursor CLI (cursor.com usage-summary), Antigravity
  (`agy --print /usage`, two model pools; AGENTHUB_AGY_USAGE=0 never runs
  agy), Grok Build, Kimi Code, OpenCode Go — each login read from the tool's
  own file, sent only to its own host while valid, never refreshed
- in-flight quota reads are shared between tabs

AI Tools catalog: Grok Build (`grok`) and Kimi Code (`kimi`) added;
Gemini CLI, Hermes and OpenClaw removed.

Also: Quit AgentHub (#65, `agenthub stop`), status-area icon, Add to Chat
on an editor selection, Settings in three groups, JetBrains-style Changes
panel (ticked files/hunks, ignore, blame, file history), terminal font.

--no-verify: :3000 is taken by another dev server (lane-detect tests);
both suites run by hand — server 2636/2639 (the 3 are :3000), client
1131/1131.

bin/agenthub.js

@@ -40,7 +40,7 @@
 
 const path = require("node:path");
 const fs = require("node:fs");
-const { spawn } = require("node:child_process");
+const { spawn, spawnSync } = require("node:child_process");
 
 // Resolve the repo root relative to this script's REAL location so the CLI
 // works both from a checkout (./bin/agenthub.js) and through the global symlink
@@ -1397,14 +1397,36 @@ async function cmdReinstallHooks() {
  * built client) and wait until /api/health answers. No-ops with a pointer to
  * the live URL when a server is already up. The child is fully detached with
  * its output appended to data/agenthub-server.log, so closing this terminal does
- * not stop the dashboard; stop it later with `kill <pid>` (the PID is
- * printed and registered in ~/.claude/.agenthub.json).
+ * not stop the dashboard; stop it later with `agenthub stop`.
  */
 async function cmdStart(flags) {
+  // A Quit (`agenthub stop`) held the plugin bootstrap off; starting ends it.
+  require(path.join(REPO_ROOT, "server", "lib", "quit.js")).clearQuit();
   if (await serverIsUp()) {
     console.log(`${c.green("●")} Dashboard already running at ${c.bold(baseUrl())}`);
     return;
   }
+  // A plugin install starts the way a Claude Code session does: its bootstrap
+  // knows the runtime dir, the UI bundle and the autostart unit.
+  if (/[\\/]\.claude[\\/]plugins[\\/]cache[\\/]/.test(REPO_ROOT)) {
+    spawnSync(
+      process.execPath,
+      [path.join(REPO_ROOT, "scripts", "plugin-bootstrap.js"), "--worker"],
+      {
+        stdio: "inherit",
+      }
+    );
+    const deadline = Date.now() + 30_000;
+    while (Date.now() < deadline) {
+      if (await serverIsUp()) {
+        console.log(`${c.green("●")} Dashboard ${c.bold("up")} at ${c.bold(baseUrl())}`);
+        return;
+      }
+      await new Promise((r) => setTimeout(r, 500));
+    }
+    console.error(c.red("✖ Server did not become healthy within 30 s — run /agenthub-doctor"));
+    process.exit(1);
+  }
   const clientDist = path.join(REPO_ROOT, "client", "dist", "index.html");
   if (!fs.existsSync(clientDist)) {
     console.error(c.red("✖ client/dist is missing — the production server needs a built client."));
@@ -1447,7 +1469,7 @@ async function cmdStart(flags) {
       console.log(
         `${c.green("●")} Dashboard ${c.bold("up")} at ${c.bold(baseUrl())} ${c.dim(`(pid ${child.pid})`)}`
       );
-      console.log(c.dim(`  Stop it with: kill ${child.pid}`));
+      console.log(c.dim("  Stop it with: agenthub stop"));
       return;
     }
     tick++;
@@ -1463,6 +1485,33 @@ async function cmdStart(flags) {
   process.exit(1);
 }
 
+/**
+ * Quit AgentHub (issue #65): every lane pane is killed, the server stops, and
+ * the plugin bootstrap starts none until `agenthub start` — or a boot/login
+ * through an enabled autostart unit (`server/lib/quit.js`).
+ */
+async function cmdStop() {
+  if (!(await serverIsUp())) {
+    require(path.join(REPO_ROOT, "server", "lib", "quit.js")).markQuit();
+    console.log(
+      `${c.dim("○")} Dashboard is not running — it stays stopped until ${c.bold("agenthub start")}`
+    );
+    return;
+  }
+  const { killed } = await post("/api/settings/quit");
+  const deadline = Date.now() + 15_000;
+  while ((await serverIsUp()) && Date.now() < deadline) {
+    await new Promise((r) => setTimeout(r, 250));
+  }
+  if (await serverIsUp()) {
+    console.error(c.red(`✖ The dashboard at ${baseUrl()} is still answering after 15 s`));
+    process.exit(1);
+  }
+  console.log(
+    `${c.green("✔")} AgentHub stopped${killed ? ` — ${killed} terminal session(s) closed` : ""}. Start it again with: ${c.bold("agenthub start")}`
+  );
+}
+
 /**
  * Installs/removes a systemd `--user` service (Linux) or a LaunchAgent
  * (macOS) so the dashboard survives reboots without anything (Claude Code
@@ -2731,6 +2780,11 @@ const COMMAND_GROUPS = [
     [
       ["status", "", "Up/down indicator for the dashboard server"],
       ["start", "[--port N]", "Start the server in the background and wait for healthy"],
+      [
+        "stop",
+        "",
+        "Quit: close every workspace terminal and stop the server until `agenthub start`",
+      ],
       [
         "service",
         "install|uninstall|status [--port N]",
@@ -2948,6 +3002,11 @@ const COMMAND_GROUPS = [
         "",
         "Run the read-only MCP server on stdio (claude mcp add agenthub -- agenthub mcp)",
       ],
+      [
+        "tray",
+        "",
+        "Show AgentHub's icon in the OS status area now (the server keeps it up; Settings → System hides it)",
+      ],
       ["statusline", "", "Render the Claude Code statusline from the JSON on stdin"],
       [
         "statusline install|uninstall",
@@ -4000,6 +4059,8 @@ async function runCommand(argv) {
       return cmdStatus();
     case "start":
       return cmdStart(flags);
+    case "stop":
+      return cmdStop();
     case "service":
       return cmdService(positional[0], flags);
     case "server":
@@ -4135,6 +4196,8 @@ async function runCommand(argv) {
         return;
       }
       return require(path.join(REPO_ROOT, "statusline", "statusline.js")).main();
+    case "tray":
+      return require(path.join(REPO_ROOT, "scripts", "tray.js")).main();
     case "open":
       return cmdOpen();
     case "version":