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).

server/lib/ai-tools.js

@@ -88,7 +88,7 @@ function validate(doc, source) {
   if (typeof doc.label !== "string" || !doc.label.trim()) return null;
   if (!isStrArray(doc.detect, CMD_RE) || !doc.detect.length) return null;
   if (doc.requires !== undefined && !isStrArray(doc.requires, CMD_RE)) return null;
-  for (const k of ["args", "resume", "bypass"]) {
+  for (const k of ["args", "resume", "resumeById", "bypass"]) {
     if (doc[k] !== undefined && !isStrArray(doc[k])) return null;
   }
   if (doc.bypassEnv !== undefined) {
@@ -145,6 +145,9 @@ function validate(doc, source) {
     faviconDomain: typeof doc.faviconDomain === "string" ? doc.faviconDomain : null,
     prompt,
     resume: doc.resume || null,
+    // `resumeById`: the flag(s) a NAMED session's id follows, as one more argv
+    // element (`omp --resume <id>`) — the id is validated at spawn time.
+    resumeById: doc.resumeById || null,
     bypass: doc.bypass || null,
     bypassEnv: doc.bypassEnv || null,
     launcher,
@@ -416,6 +419,8 @@ function view() {
         launcher: t.launcher,
         prompt: t.prompt ? { mode: t.prompt.mode } : null,
         resume: !!t.resume,
+        // claude/codex resume a named session through their own argv builders.
+        resumeById: Boolean(t.resumeById || t.launcher),
         bypass: !!(t.bypass || t.bypassEnv),
         proxyCapable: PROXY_CAPABLE.has(t.id),
         // claude/codex take a model through their own argv builders.