Register with Custodian State Hub and seed format open-questions workplan

Register canned-prompts under agents / practice (topic
c1d199b6-55ee-4db6-b49e-257a9f0f15ac, workplan prefix CANP-WP) via
`statehub register`, then replace the generated placeholders with
repo-specific facts.

- SCOPE.md: real boundaries drawn from INTENT.md's deliberate boundary,
  current state (spec v0.1 + reference CLI, 3/3 tests pass, example
  round-trips), and the developer workflow.
- AGENTS.md: drop the unresolved {CREDENTIAL_ROUTING} template token left
  by the generator.
- CANP-WP-0001: bootstrap tasks closed.
- CANP-WP-0002: new workplan carrying the five § 23 open questions promoted
  from "experience will decide" to "decide for v0.2" — optional-input
  defaults (static or derived), registry namespaces/ownership, prompt
  composition, canonical eval schemas, typed context/dependency contracts —
  plus two reference-implementation conformance defects found in review
  (prerelease versions sort as newest; copy_immutable packages the whole
  source directory).

Also lands the previously untracked seed: INTENT.md, the CPF v0.1 spec,
the reference CLI, and examples/pqrst-estimate.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Bjefh8NUiEiahN4JLwoSKM

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 388925@bnt-lap001
Assistant-Session: 3507023f-e0fd-4a1e-9d90-a0d4217d1502

.custodian-brief.md

@@ -0,0 +1,27 @@
+<!-- custodian-brief: generated by statehub register; fix-consistency may replace this file -->
+# Custodian Brief - canned-prompts
+
+**Project:** canned-prompts
+**Domain:** agents
+**State Hub:** http://127.0.0.1:8000
+**Topic ID:** `c1d199b6-55ee-4db6-b49e-257a9f0f15ac`
+
+## Open Workplans
+
+### Bootstrap State Hub integration
+
+Workplan file: `workplans/CANP-WP-0001-statehub-bootstrap.md`
+
+Open tasks:
+- T01 - Review generated integration files
+- T02 - Verify local developer workflow
+- T03 - Seed first real workplan
+
+## Session Start
+
+1. Read `INTENT.md`, `SCOPE.md`, and `AGENTS.md`.
+2. Check inbox: `GET /messages/?to_agent=canned-prompts&unread_only=true`.
+3. Scan `workplans/`.
+4. Update task statuses in workplan files as work progresses.
+
+Last generated: 2026-09-06