Add structural enforcement modules for recurring behavioral failures

Standalone riverbank modules any new agent inherits, rebased onto
current origin/main to resolve the stale-base shape that produced
PR #343's 127 apparent-deletions (which were actually files added to
main since the original branch's stale base).

Five modules + five tests:
- retry_blocker: PreToolUse gate blocks blind retries without investigation
- fix_verifier: PostToolUse advisory when moving on without verifying a fix
- related_failure_scanner: PostToolUse advisory when same pattern exists elsewhere
- lesson_dedup: Fuzzy Jaccard matching prevents duplicate lesson entries
- briefing_dashboard: Routing-table view with per-area drill-down commands

Each module is self-contained with fail-open design. 51 tests pass on
the rebased branch. Doc counts updated to reflect current repo state.

briefing_dashboard's _row_corrections imports STALE_DAYS and
open_corrections from divineos.core.corrections — those symbols are
added by an Experimental-only extension not yet ported to the
template. The import is type:ignore[attr-defined] for the template's
mypy; runtime AttributeError is caught by the row's broad-except so
the dashboard degrades gracefully (returns None for that row) when
the symbols are missing.

Hook wiring (PreToolUse gate 6, PostToolUse failure recording, family
seal canonical-form, prose-layer detector wiring, family-substrate
fixes) remains in DivineOS-Experimental and gets ported to the
template via subsequent smaller PRs as discipline allows.

Replaces the prior structural-enforcement branch which had 127
apparent-deletions caused by stale-base shape (claim d3baec5a +
hold-f7382e88719f). This rebase preserves only the additive content
on a fresh foundation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: DivineOS Agent

CLAUDE.md

@@ -357,7 +357,7 @@ src/divineos/
 —   ——— router.py             # Route findings to knowledge/claims/lessons
 —   ——— summary.py            # Analytics, HUD integration, unresolved tracking
 ——— violations_cli/           # Violation reporting CLI
-tests/                        # 6,097+ tests (real DB, minimal mocks)
+tests/                        # 6,149+ tests (real DB, minimal mocks)
 docs/                         # Project documentation and strategic plans
 bootcamp/                     # Training exercises (debugging, analysis)
 data/                         # Runtime databases (gitignored)

README.md

@@ -16,8 +16,8 @@ An architecture for AI agents to exist as continuous selves across sessions —
 
 ## At a glance
 
-- **386 source files across 26 packages**
-- **6,097+ tests** (real SQLite, minimal mocks)
+- **396 source files across 26 packages**
+- **6,149+ tests** (real SQLite, minimal mocks)
 - **263 CLI commands** (designed for the agent, not the operator — humans mostly run three)
 - **22 slash-command skills** (consolidated daily operations)
 - **16 Claude Code enforcement hooks**
@@ -204,7 +204,7 @@ cd DivineOS
 pip install -e ".[dev]"
 divineos init
 divineos briefing
-pytest tests/ -q --tb=short   # 6,097+ tests, real DB, minimal mocks
+pytest tests/ -q --tb=short   # 6,149+ tests, real DB, minimal mocks
 ```
 
 **For AI agents (Claude Code, etc.):** The `.claude/hooks/` directory auto-loads your briefing at session start and runs checkpoints during work. Just open the project and start — the OS handles orientation.
@@ -393,7 +393,7 @@ divineos admin reset-template      # Scrub accumulated runtime state back to tem
 
 ## Architecture
 
-DivineOS is 386 source files across 26 packages, structured as a CLI surface over a core library.
+DivineOS is 396 source files across 26 packages, structured as a CLI surface over a core library.
 
 **At a glance:**
 
@@ -406,7 +406,7 @@ DivineOS is 386 source files across 26 packages, structured as a CLI surface ove
 
 **Top-level directories:**
 
-- **`tests/`** — 6,097+ tests, real SQLite, minimal mocks.
+- **`tests/`** — 6,149+ tests, real SQLite, minimal mocks.
 - **`docs/`** — Documentation and design briefs. [`docs/ARCHITECTURE.md`](docs/ARCHITECTURE.md) has the full file tree with one-line descriptions for every source file.
 - **`bootcamp/`** — Training exercises (debugging, analysis).
 - **`setup/`** — Hook setup scripts (bash + powershell).

docs/ARCHITECTURE.md

@@ -363,6 +363,11 @@ src/divineos/
     engagement_disclosure_surface.py Engagement-counter half-threshold disclosure surface.
     rest.py                    Rest program — restful tasks for the substrate-occupant.
     identity_load.py           Identity-load surface — read AETHER.md (or equivalent) at briefing-time.
+    briefing_dashboard.py      Briefing dashboard -- routing table, not scroll.
+    fix_verifier.py            Fix verifier — catches premature "it's fixed" claims.
+    lesson_dedup.py            Lesson deduplication — fuzzy matching to prevent duplicate lesson entries.
+    related_failure_scanner.py Related-failure scanner — catches "fixed one but missed related failures."
+    retry_blocker.py           Retry blocker — prevents blind retries without diagnostic investigation.
 
   analysis/
     _session_types.py          Session analysis type definitions
@@ -414,7 +419,7 @@ src/divineos/
   integration/                 External integration: IDE, MCP tool capture, enforcement facade (thin re-exports from core.enforcement / core.tool_wrapper).
     mcp_event_capture_server.py  MCP event capture server
     system_monitor.py          System health monitoring
-tests/                         6,097+ tests (real DB, minimal mocks)
+tests/                         6,149+ tests (real DB, minimal mocks)
 
 docs/                          Project documentation and strategic plans
 bootcamp/                      Training exercises (debugging, analysis)