Close out INFO-WP-0030; record second Emission Cadence declaration

INFO-WP-0030: register practice-pattern/explicit-unsafe-diagnostic-mode
(adapted from coordination-engine's OrwellLoggingDiagnostics candidate,
INFO-DEC-2026-003) at canon 0.13.0, close the assimilation, and notify
coordination-engine for COORDINATION-WP-0004-T02. Workplan finished.

INFO-WP-0029: record activity-core's source-owned declaration (T03/T04
done) with its expected-rate/calendar-schedule incompatibility as
demand/EmissionExpectedRateCalendar.md, and record audit-core's
structural-only observer evaluation of net-kingdom's declaration as a
steward note. No party has yet produced a real observer result against
traffic, so T05 and the workplan stay blocked on external action.

Updated artifact-count and practice-pattern-count assertions in
tests/test_cli.py and tests/test_service.py for the new artifact.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Assistant: claude-code
Assistant-Model: sonnet
Assistant-Process: 317218@bnt-lap001
Assistant-Session: a8d6c0ab-c70f-4610-a288-576f44d747d4

infospace/agent/briefs/practice-pattern-explicit-unsafe-diagnostic-mode.md

@@ -0,0 +1,33 @@
+---
+id: agent-brief/practice-pattern-explicit-unsafe-diagnostic-mode
+artifact_id: practice-pattern/explicit-unsafe-diagnostic-mode
+source_path: patterns/ExplicitUnsafeDiagnosticMode.md
+source_kind: practice-pattern
+generated: true
+---
+
+<!-- GENERATED by info_tech_canon; do not edit by hand. -->
+
+# Agent Brief: ExplicitUnsafeDiagnosticMode
+
+- Artifact ID: `practice-pattern/explicit-unsafe-diagnostic-mode`
+- Kind: `practice-pattern`
+- Canonical path: `patterns/ExplicitUnsafeDiagnosticMode.md`
+- Full source: `patterns/ExplicitUnsafeDiagnosticMode.md`
+- Summary: Reusable canon PracticePattern: ExplicitUnsafeDiagnosticMode.
+
+## Retrieval Hints
+
+Imports and anchors:
+- `model/data`
+- `model/devsecops`
+- `model/observability`
+- `scheme/practice-pattern`
+
+## Owned Concepts
+
+- `ExplicitUnsafeDiagnosticMode`
+
+## Related Distinctions
+
+No common distinction is anchored directly on this artifact.