feat(orchestrator): S5 Tasks with choices, Gantt, estimates and burn charts

Requirement 001 phase 6, S5:

- Tasks tab: every pending ask, rule request, operator row and choice
  card shows under "waits on Operator"; a choice request goes out on a
  fixed channel button, post and call with an agent multi-select, and a
  click on an option sends a passkey-signed answer the agent checks with
  operator_message. The unsigned /api/decisions/<id>/choose route is
  gone, and a decision, choice answer or choice recipient whose name
  holds "*" is refused, so a signed answer never reaches every agent.
- Gantt view: one bar per task from start to end (running to now), one
  arrow per explicit, branch-base and queue-order edge, hatched forecast
  bars (always, points only, real only) from the median duration or
  points times median hours per point.
- rasci.py set --after/--drop-after stores task dependencies and refuses
  unknown tasks and cycles.
- Estimation toggle (No estimate default, Story points) is stored in the
  hub settings; burndown and burnup per whole register, list filter or
  one agent or line, counting tasks or summing complexity with the
  unestimated tasks as their own line.
- New skill kvb-org-queue-estimate: "Request estimates" (story points
  mode, passkey-signed board action) or the skill sends exactly one
  newsletter listing every unestimated task with its RASCI parties; a
  party name that is no plain name shows as "unnamed party".
- Business value per task or in bulk is stored only with a verified
  passkey assertion over the exact ids and values; WSJF uses it instead
  of the median. The task list sorts by every decision-50 mode both ways.
- e2e: the walk's pending ask lives an hour instead of 60 s, and the
  CDP and BiDi drivers retry removing the browser profile while the
  browser exits (ENOTEMPTY).

Evidence: make test 709 OK, ruff and markdownlint clean
(/tmp/s5-make-test-fix-2.log); e2e 26 OK in Chromium and Firefox
(/tmp/s5-e2e-fix-2.log); MEDUSA 50 files, an independent skeptic
rejected four holes (unsigned choose route, unsigned estimates request,
free-text party names, "*" recipients incl. normalizer bypasses), all
fixed and re-verified, the 8 remaining pattern hits accepted, rescan 0
open.

🎯 Fix: 92 %
💥 Break: 4 %
💸 Cost: 100 %
⏱️ Time: –
🛡️ Security: 100 %
🏆 Score: 88
🚦 Gate: ✅ 90/5, cost and time <= 100, security 100 %

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/test_hub_inbox.py

@@ -22,16 +22,17 @@ class TestHubInbox(HubCase):
         self.assertEqual([inbox[key]["green"] for key in (green, red, ask_id, risky, decision_id)], [True, False, True, False, True])
         self.assertEqual(inbox[risky]["warnings"], ["deletes recursively"])
         batch = [self.entry("review", green, "", ""), self.entry("ask", ask_id, "", ""), self.entry("decision", decision_id, "Merge now", "")]
-        signer = key(-7, "main")
+        signer = self.pin()
         self.assertEqual(self.approve([self.entry("review", green, "", ""), self.entry("review", red, "", "")], None)[0], 400)
         self.assertEqual(self.approve([self.entry("decision", decision_id, "Later", "")], None)[0], 400)
         self.assertEqual(self.approve([self.entry("review", green, "", ""), self.entry("review", green, "", "")], None)[0], 400)
         self.assertEqual(self.approve([self.entry("review", "0123456789abcdef", "", "")], None)[0], 404)
         self.assertEqual(self.post_json("/api/inbox/approve", {"items": batch, "proof": None}, self.client())[0], 403)
         prepared = self.prepare(batch)
-        listed = [signing.item_hash(signing.review_item(green, "/repo/.git", "/repo/.worktrees/feature/x", "feature/x", TREE)), signing.item_hash(signing.ask_item(ask_id, "Bash", "make deploy", "/repo", "s1"))]
+        answer = signing.message_item("Skills", "post", f"Choice for decision {decision_id} (Merge the hub?): Merge now", "", "", "")
+        listed = [signing.item_hash(signing.review_item(green, "/repo/.git", "/repo/.worktrees/feature/x", "feature/x", TREE)), signing.item_hash(signing.ask_item(ask_id, "Bash", "make deploy", "/repo", "s1")), signing.item_hash(answer)]
         self.assertEqual((prepared["payload"]["items"], prepared["challenge"]), (sorted(listed), signing.challenge(prepared["payload"])))
-        unsigned = [self.entry("decision", decision_id, "Merge now", ""), {**self.entry("review", red, "", ""), "verb": "reject"}]
+        unsigned = [{**self.entry("review", red, "", ""), "verb": "reject"}]
         self.assertIsNone(self.prepare(unsigned)["payload"])
         partial = signer.proof(self.prepare(batch[:1])["payload"], self.origin)
         for proof in (None, partial, {"payload": prepared["payload"]}, {"payload": {**prepared["payload"], "expires": int(time.time()) - 1}, "assertion": {}}):