Run the ticket skills through T3 Code, with a review council before pre-mr-review

Agents now start pre-mr-review on the work account themselves, through a Klaude
delegate, and continue from its verdict. A council of models on my own accounts
replaces the single reviewer before it, and adding a seat is one table row.

Proof comes from T3's browser, with mp4 recordings, and capture-proof stays as
the fallback. Ticket pages carry their own data, so index.html renders alone in
T3's file viewer, and worktree threads share the main checkout's docs.

A PreToolUse hook sends subagents in T3 threads to delegate_task. Blocker, proof,
review and MR summary rules come from ideas in t3dotgg/tstack.

user/agents/skills/ticket/scripts/ticket-data.ts

@@ -1,6 +1,6 @@
 // The ticket page's data model: one `ticket.data.js` per ticket and one `epic.data.js`
-// per epic, each a single `window.X = <strict JSON>;` assignment so a page opened from
-// file:// can load it with a <script> tag. Everything that reads or writes those files
+// per epic, each a single `window.X = <strict JSON>;` assignment so an open page can poll
+// it with a <script> tag, where file:// and T3 Code's sandboxed viewer cannot fetch. Everything that reads or writes those files
 // goes through this module, so the shape is defined once and validated on every write.
 
 import { mkdirSync, readFileSync, renameSync, writeFileSync } from "node:fs";
@@ -70,7 +70,7 @@ export interface Plan {
 }
 
 export interface Proof {
-  kind: "image" | "text" | "test";
+  kind: "image" | "video" | "text" | "test";
   /** Relative to the ticket directory, for image and text proof. */
   file?: string;
   /** Embedded content of a text proof, because file:// pages cannot fetch it. */