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

workplans/CANP-WP-0001-statehub-bootstrap.md

@@ -0,0 +1,57 @@
+---
+id: CANP-WP-0001
+type: workplan
+title: "Bootstrap State Hub integration"
+domain: agents
+repo: canned-prompts
+status: finished
+owner: codex
+topic_slug: practice
+created: "2026-09-06"
+updated: "2026-09-06"
+---
+
+# Bootstrap State Hub integration
+
+Portable package format, spec and reference CLI for reusable prompt artifacts (Canned Prompt Format v0.1).
+
+## Review Generated Integration Files
+
+```task
+id: CANP-WP-0001-T01
+status: done
+priority: high
+```
+
+Review `INTENT.md`, `SCOPE.md`, `AGENTS.md`, and `.custodian-brief.md`.
+Replace generated placeholders with repo-specific facts where needed.
+
+## Verify Local Developer Workflow
+
+```task
+id: CANP-WP-0001-T02
+status: done
+priority: high
+```
+
+Identify the repo's install, test, lint, build, and run commands. Add or refine
+those commands in the agent instructions so future coding sessions can verify
+changes confidently.
+
+## Seed First Real Workplan
+
+```task
+id: CANP-WP-0001-T03
+status: done
+priority: medium
+```
+
+Done: `workplans/CANP-WP-0002-format-open-questions.md`.
+
+Create the first implementation workplan for the repository's most important
+next change. After workplan file updates, run the sync locally from this repo
+checkout:
+
+```bash
+statehub fix-consistency
+```