feat: Implement Steps 4-8 of cognitive roadmap (Issues #93, #82, #81, #84, #97)

[Copilot]

Delivers five roadmap items in one pass: PAT documentation, consciousness emergence observatory, autonomous goal engine, dashboard UI panels, and knowledge persistence/hot-reload wiring.

Backend

Consciousness Emergence Observatory (#82)

• ConsciousnessEmergenceDetector.get_breakthroughs(limit) — reads logs/breakthroughs.jsonl, newest-first
• UnifiedConsciousnessObservatory — background task tracking peak score, total states/breakthroughs, uptime; get_observatory() getter for clean encapsulation
• GET /api/consciousness/breakthroughs + GET /api/consciousness/observatory

Autonomous Goal Engine (#81)

New backend/core/autonomous_goal_engine.py:

• AutonomousGoalGenerator — monitors low φ, coherence drift, knowledge gaps → proposes typed goals (integration, coherence, learning, exploration, self_improvement); 120 s dedup window, caps at 10 active goals
• CreativeSynthesisEngine — concept-pair synthesis with novelty/coherence scoring and repeat-pair penalty
• GET /api/consciousness/goals, POST /api/consciousness/goals/generate, GET /api/consciousness/creative-synthesis
• Seeded at startup with a baseline generation pass

Knowledge Persistence & Hot-Reload (#97)

• OntologyHotReloader wired into lifespan — active when GODELOS_ONTOLOGY_DIR is set; watches .ttl/.json-ld, applies delta without restart
• GET /api/system/knowledge-persistence — reports backend type, path, reload status, and env-var documentation inline
• POST /api/system/knowledge-persistence/reload — triggers immediate delta reload

Frontend (#84)

Three new tabs in UnifiedConsciousnessDashboard.svelte:

• Autonomous Goals — priority-badged cards (critical/high/medium/low) with type, confidence, novelty score
• Breakthrough Log — historical entries from /api/consciousness/breakthroughs with per-dimension chips
• Subsystem Health Grid — module status cards from /api/system/dormant-modules, falls back to /api/consciousness/health

Documentation (#93)

Added "Secrets Management & GitHub PAT Setup" section to docs/CONTRIBUTING.md: required scopes table (repo, project, workflow, read:org), storage location, 90-day rotation schedule, and scope-verification curl snippet.

Related Issues

Test Evidence

31 new unit tests in tests/backend/test_autonomous_goal_engine.py covering AutonomousGoalGenerator, CreativeSynthesisEngine, UnifiedConsciousnessObservatory, and get_breakthroughs. Frontend build clean (✓ built in 6.3s). CodeQL: 0 alerts.

tests/backend/test_autonomous_goal_engine.py  31 passed in 0.51s
tests/backend/                               186 passed, 2 pre-existing failures (semver dep, backend.main stub)

Checklist

• Tests pass locally (pytest tests/)
• Code is formatted (black . and isort .)
• Documentation updated (if applicable)
• No secrets or credentials committed
• Related issue linked above

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Closes #81
Closes #82
Closes #84
Closes #93
Closes #97

[github-actions]

🧪 CI — Python 3.11

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[github-actions]

🧪 CI — Python 3.10

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