refactor: rename cli-v2 → cli, archive legacy cli, plus broker-side grants + auto-migrate

- apps/cli/ is now the canonical CLI (was apps/cli-v2/).
- apps/cli/ legacy v0 archived as branch 'legacy-cli-archive' and tag
  'cli-v0-legacy-final' before deletion; git history preserves it too.
- .github/workflows/release-cli.yml paths updated.
- pnpm-lock.yaml regenerated.

Broker-side peer-grant enforcement (spec: 2026-04-15-per-peer-capabilities):
- 0020_peer-grants.sql adds peer_grants jsonb + GIN index on mesh.member.
- handleSend in broker fetches recipient grant maps once per send, drops
  messages silently when sender lacks the required capability.
- POST /cli/mesh/:slug/grants to update from CLI; broker_messages_dropped_by_grant_total metric.
- CLI grant/revoke/block now mirror to broker via syncToBroker.

Auto-migrate on broker startup:
- apps/broker/src/migrate.ts runs drizzle migrate with pg_advisory_lock
  before the HTTP server binds. Exits non-zero on failure so Coolify
  healthcheck fails closed.
- Dockerfile copies packages/db/migrations into /app/migrations.
- postgres 3.4.5 added as direct broker dep.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/cli/src/ui/logo-spinner.ts

@@ -0,0 +1,17 @@
+import { createSpinner, FRAME_HEIGHT } from "./spinner.js";
+import { enterFullScreen, exitFullScreen, writeCentered, termSize, drawTopBar } from "./screen.js";
+import { boldOrange, dim } from "./styles.js";
+
+export function runLogoSpinner(): { stop: () => void } {
+  const { rows } = termSize();
+  enterFullScreen(); drawTopBar();
+  const logoTop = Math.floor((rows - FRAME_HEIGHT - 4) / 2);
+  writeCentered(logoTop + FRAME_HEIGHT + 1, boldOrange("claudemesh"));
+  writeCentered(logoTop + FRAME_HEIGHT + 2, dim("peer mesh for Claude Code"));
+  const spinner = createSpinner({
+    render(lines) { for (let i = 0; i < lines.length; i++) writeCentered(logoTop + i, lines[i]!); },
+    interval: 70,
+  });
+  spinner.start();
+  return { stop() { spinner.stop(); exitFullScreen(); } };
+}