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.

server/lib/pricing-sync.js

@@ -19,10 +19,11 @@
  * fast columns: Codex's fast/priority service tier is booked as `speed = fast`
  * (`codex-usage.js`), and its flex tier as `service_tier = 'flex'` (half price,
  * like batch, in `ratesForBucket`).
+ * A Claude model's `*_above_100k_tokens` input/output rates (Haiku 5.5) fill
+ * the long_* columns, priced against token_usage's long-context subsets.
  * ponytail: OpenAI's long-context (>272k) and Gemini's >200k-token rates are
- * not modelled — Codex's context window (258k) stays under 272k and no current
- * Claude model has such a tier; it needs a context-size bucket in token_usage
- * (a primary-key rebuild) if that changes.
+ * not modelled — Codex's context window (258k) stays under 272k, and a
+ * threshold other than LONG_CONTEXT_TOKENS (100k) needs its own subsets.
  * @author Nguyễn Ngọc Trí Vĩ <vinnt@smartgift.vn>
  */
 
@@ -112,6 +113,14 @@ function toRow(fam, e) {
     : [per(e.input_cost_per_token_priority), per(e.output_cost_per_token_priority)];
   const prioOk =
     prio.length > 0 && prio.every((v) => Number.isFinite(v) && v > 0 && v <= MAX_PER_MTOK);
+  const long = claude
+    ? [
+        per(e.input_cost_per_token_above_100k_tokens),
+        per(e.output_cost_per_token_above_100k_tokens),
+      ]
+    : [];
+  const longOk =
+    long.length > 0 && long.every((v) => Number.isFinite(v) && v > 0 && v <= MAX_PER_MTOK);
   // Rounded: 0.000004 * 1e6 is 3.9999999999999996, which Settings would show.
   const r = (n) => Math.round(n * 1e6) / 1e6;
   return {
@@ -124,6 +133,8 @@ function toRow(fam, e) {
     w1h: r(w1h),
     fastIn: fastOk ? r(input * fast) : prioOk ? r(prio[0]) : 0,
     fastOut: fastOk ? r(output * fast) : prioOk ? r(prio[1]) : 0,
+    longIn: longOk ? r(long[0]) : 0,
+    longOut: longOk ? r(long[1]) : 0,
   };
 }
 
@@ -192,6 +203,8 @@ const RATE_COLS = [
   ["w1h", "cache_write_1h_per_mtok"],
   ["fastIn", "fast_input_per_mtok"],
   ["fastOut", "fast_output_per_mtok"],
+  ["longIn", "long_input_per_mtok"],
+  ["longOut", "long_output_per_mtok"],
 ];
 const sameRates = (row, db) => RATE_COLS.every(([k, col]) => Math.abs(row[k] - db[col]) < 1e-9);
 
@@ -253,12 +266,14 @@ async function syncPricing(db, { fetchList = defaultFetch, now = Date.now() } =
     const insert = db.prepare(
       `INSERT OR IGNORE INTO model_pricing (model_pattern, display_name, input_per_mtok,
          output_per_mtok, cache_read_per_mtok, cache_write_per_mtok, cache_write_1h_per_mtok,
-         fast_input_per_mtok, fast_output_per_mtok, source) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, 'sync')`
+         fast_input_per_mtok, fast_output_per_mtok, long_input_per_mtok, long_output_per_mtok, source)
+         VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 'sync')`
     );
     const update = db.prepare(
       `UPDATE model_pricing SET display_name = ?, input_per_mtok = ?, output_per_mtok = ?,
          cache_read_per_mtok = ?, cache_write_per_mtok = ?, cache_write_1h_per_mtok = ?,
          fast_input_per_mtok = ?, fast_output_per_mtok = ?,
+         long_input_per_mtok = ?, long_output_per_mtok = ?,
          updated_at = strftime('%Y-%m-%dT%H:%M:%fZ', 'now')
        WHERE model_pattern = ? AND source = 'sync'`
     );
@@ -273,7 +288,17 @@ async function syncPricing(db, { fetchList = defaultFetch, now = Date.now() } =
         if (dismissed.has(pattern)) continue;
         const row = toRow(fam, list[fam]);
         if (!row) continue;
-        const rates = [row.input, row.output, row.read, row.w5m, row.w1h, row.fastIn, row.fastOut];
+        const rates = [
+          row.input,
+          row.output,
+          row.read,
+          row.w5m,
+          row.w1h,
+          row.fastIn,
+          row.fastOut,
+          row.longIn,
+          row.longOut,
+        ];
         const have = rows.get(pattern);
         if (!have) {
           if (insert.run(pattern, row.name, ...rates).changes) added.push(pattern);