feat(ai-tools): omp shared + OpenCode/omp sessions, tokens, subagents; Grok hooks; resume by id

- omp-usage.js / opencode-usage.js: poll each CLI's own session store into
  sessions (tool omp/opencode), token_usage per model and subagent agents;
  transcript routes read them (omp journals, OpenCode's opencode.db).
- Grok runs the Claude hooks in ~/.claude/settings.json: its hooks are now
  recognised (hookEventName + workspaceRoot), tagged tool=grok, and their
  transcript_path dropped instead of being parsed as a Claude transcript.
- Catalog `resumeById`: omp/Grok/Cursor `--resume <id>`, OpenCode
  `--session <id>`; session ids may carry `_`. The client offers Resume for
  any tool that resumes by id.
- Kimi Code and GitHub Copilot leave the catalog (their session stores could
  not be verified).

docs/LANES.md

@@ -1830,7 +1830,7 @@ agenthub stage <stage> [--evidence "..."]         # Report the current stage
 
 ## Workspaces on any AI tool
 
-A workspace can run any AI coding CLI in the AI Tools catalog (`server/data/ai-tools/*.json` — nine built in: Claude Code, Codex, Antigravity, GitHub Copilot CLI, OpenCode, Cursor CLI (`cursor-agent`), Grok Build (`grok`), Kimi Code (`kimi`) and Oh My Pi —, plus any `*.json` in `DASHBOARD_AI_TOOLS_DIR`, which replaces a built-in file with the same `id` but may not set `launcher`). Settings → Agents → **AI tools** (`/settings/agents`; the old `/settings#ai-tools` redirects there) lists what is installed (found on PATH; **Refresh** re-reads the login shell's PATH first) with an enable switch, **Set default** and **Update** (for every tool whose catalog file names an updater — no version lookup, the updater itself reports "up to date"), and, folded behind a disclosure, what is available to install with a homepage link. Each installed, enabled tool's own settings (`/settings/agents/<id>`) are tabs on that page — **All tools** · Claude Code · Codex · … — rather than items in the left nav, and a click on a tool's row (or its name) opens its tab. The Add-workspace modal shows the chosen tool as one button (the default until changed); clicking it lists every installed, enabled tool as buttons to pick from; `agenthub workspace add --tool <id>` does the same from a terminal. The run form's **Model** picker lists the workspace tool's own models (`GET /api/ai-tools/:id/models`; Claude, Codex, and any catalog tool whose file declares `model: { flag }` — the id is validated and passed as `<flag> <id>`), plus **Custom…**, and starts on the tool's default model when one is set.
+A workspace can run any AI coding CLI in the AI Tools catalog (`server/data/ai-tools/*.json` — seven built in: Claude Code, Codex, Antigravity, OpenCode, Cursor CLI (`cursor-agent`), Grok Build (`grok`) and Oh My Pi —, plus any `*.json` in `DASHBOARD_AI_TOOLS_DIR`, which replaces a built-in file with the same `id` but may not set `launcher`). Settings → Agents → **AI tools** (`/settings/agents`; the old `/settings#ai-tools` redirects there) lists what is installed (found on PATH; **Refresh** re-reads the login shell's PATH first) with an enable switch, **Set default** and **Update** (for every tool whose catalog file names an updater — no version lookup, the updater itself reports "up to date"), and, folded behind a disclosure, what is available to install with a homepage link. Each installed, enabled tool's own settings (`/settings/agents/<id>`) are tabs on that page — **All tools** · Claude Code · Codex · … — rather than items in the left nav, and a click on a tool's row (or its name) opens its tab. The Add-workspace modal shows the chosen tool as one button (the default until changed); clicking it lists every installed, enabled tool as buttons to pick from; `agenthub workspace add --tool <id>` does the same from a terminal. The run form's **Model** picker lists the workspace tool's own models (`GET /api/ai-tools/:id/models`; Claude, Codex, and any catalog tool whose file declares `model: { flag }` — the id is validated and passed as `<flag> <id>`), plus **Custom…**, and starts on the tool's default model when one is set.
 
 A catalog file: