fix: Phase 2 integrity review - v2.0.0 rewrite & bugfixes

Memory Consolidation Plugin (828 -> 465 lines):
- Replace SentenceTransformer with cat.embedder.embed_query() for vector consistency
- Fix per-user fact isolation: source=user_id instead of global
- Add duplicate fact detection (_is_duplicate_fact, score_threshold=0.85)
- Remove ~350 lines of dead async run_consolidation() code
- Remove duplicate declarative search in before_cat_sends_message
- Unify trivial patterns into TRIVIAL_PATTERNS frozenset
- Remove all sys.stderr.write debug logging
- Remove sentence-transformers from requirements.txt (no external deps)

Loguru Fix (cheshire-cat/cat/log.py):
- Patch Cat v1.6.2 loguru format to provide default extra fields
- Fixes KeyError: 'original_name' from third-party libs (fastembed)
- Mounted via docker-compose volume

Discord Bridge:
- Copy discord_bridge.py to cat-plugins/ (was empty directory)

Test Results (6/7 pass, 100% fact recall):
- 11 facts extracted, per-user isolation working
- Duplicate detection effective (+2 on 2nd run)
- 5/5 natural language recall queries correct

cheshire-cat/docker-compose.test.yml

@@ -0,0 +1,60 @@
+services:
+  cheshire-cat-core:
+    image: ghcr.io/cheshire-cat-ai/core:1.6.2
+    container_name: miku_cheshire_cat_test
+    depends_on:
+      - cheshire-cat-vector-memory
+    environment:
+      PYTHONUNBUFFERED: "1"
+      WATCHFILES_FORCE_POLLING: "true"
+      CORE_HOST: ${CORE_HOST:-localhost}
+      CORE_PORT: ${CORE_PORT:-1865}
+      QDRANT_HOST: ${QDRANT_HOST:-cheshire-cat-vector-memory}
+      QDRANT_PORT: ${QDRANT_PORT:-6333}
+      CORE_USE_SECURE_PROTOCOLS: ${CORE_USE_SECURE_PROTOCOLS:-false}
+      API_KEY: ${API_KEY:-}
+      LOG_LEVEL: ${LOG_LEVEL:-INFO}
+      DEBUG: ${DEBUG:-true}
+      SAVE_MEMORY_SNAPSHOTS: ${SAVE_MEMORY_SNAPSHOTS:-false}
+      OPENAI_API_BASE: "http://host.docker.internal:8091/v1"
+    ports:
+      - "${CORE_PORT:-1865}:80"
+    # Allow connection to host services (llama-swap)
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    volumes:
+      - ./cat/static:/app/cat/static
+      - ./cat/plugins:/app/cat/plugins
+      - ./cat/data:/app/cat/data
+      - ./cat/log.py:/app/cat/log.py  # Patched: fix loguru KeyError for third-party libs
+    restart: unless-stopped
+    networks:
+      - miku-test-network
+      - miku-discord_default  # Connect to existing miku bot network
+
+  cheshire-cat-vector-memory:
+    image: qdrant/qdrant:v1.9.1
+    container_name: miku_qdrant_test
+    environment:
+      LOG_LEVEL: ${LOG_LEVEL:-INFO}
+    ports:
+      - "6333:6333"  # Expose for debugging
+    ulimits:
+      nofile:
+        soft: 65536
+        hard: 65536
+    volumes:
+      - ./cat/long_term_memory/vector:/qdrant/storage
+    restart: unless-stopped
+    networks:
+      - miku-test-network
+
+networks:
+  miku-test-network:
+    driver: bridge
+  # Connect to main miku-discord network to access llama-swap
+  default:
+    external: true
+    name: miku-discord_default
+  miku-discord_default:
+    external: true  # Connect to your existing bot's network