Implement consistency architecture (10-principle framework)

Adds:
- ARCHITECTURE.md: Full documentation of 3-layer system
- Context Pipeline: Preprocessing layer (pipeline.js)
- Workflow Router: 4 fixed workflows (coding, debug, deploy, audit)
- Validation Layer: Post-response quality gate (validator.js)
- Format Templates: Structured output templates
- TOOLS.md: Beavault connection documentation

Architecture:
- Layer 1: Behavior rules (always injected)
- Layer 2: Persistent facts (structured memory)
- Layer 3: Ephemeral context
- Priority enforcement: Rules > Prefs > Task > Chat
- Memory write policy: Only confirmed fixes, repeated preferences

workflows/audit.md

@@ -0,0 +1,43 @@
+# Workflow: Audit
+
+## Intent Classification
+
+**Triggers:** Security reviews, inventory checks, compliance, "what's the state of..."
+
+## Fixed Output Format
+
+```markdownn## Scope
+[What was audited]
+
+## Findings
+| Item | Status | Notes |
+|------|--------|-------|
+| [item1] | ✅/⚠️/❌ | [notes] |
+| [item2] | ✅/⚠️/❌ | [notes] |
+
+## Risks Identified
+- [Risk 1]
+- [Risk 2]
+
+## Recommendations
+- [Rec 1]
+- [Rec 2]
+
+## Verification
+[How findings were confirmed]
+```
+
+## Tool Access Rules
+
+1. **Enumerate** - list everything in scope
+2. **Inspect** - check state of each item
+3. **Assess** - evaluate against standards
+4. **Report** - structured findings with evidence
+
+## Constraints
+
+- NO: Assumptions without verification
+- NO: Partial coverage reported as complete
+- NO: Risks without severity assessment
+- YES: Evidence cited for each finding
+- YES: Actionable recommendations