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/DEPLOYMENT.md

@@ -259,6 +259,8 @@ CODEX_HOME=                             # where Codex keeps sessions/ (default ~
 DASHBOARD_ANTIGRAVITY_POLL_MS=15000     # agy conversation files → Antigravity sessions/tokens (60 s while idle)
 AGENTHUB_GEMINI_DIR=                    # where agy keeps its data (default ~/.gemini)
 DASHBOARD_CURSOR_POLL_MS=15000          # Cursor agent transcripts → Cursor sessions (no tokens; 60 s while idle)
+DASHBOARD_OMP_POLL_MS=15000             # omp session journals → Oh My Pi sessions/tokens/subagents (60 s while idle)
+DASHBOARD_OPENCODE_POLL_MS=15000        # opencode.db → OpenCode sessions/tokens/subagents (60 s while idle)
 AGENTHUB_CURSOR_DIR=                    # where Cursor keeps its data (default ~/.cursor)
 AGENTHUB_AGY_USAGE=                     # 0 never runs `agy --print /usage` for the Usage panel's Antigravity quota (default on; running agy may update it)