v0.6.1 — Hook-based lifecycle + garbage cleanup

v0.6.1 — Hook-based lifecycle + garbage cleanup + Ark embedding

Hook registration bypass

• Fixed: Hermes _ProviderCollector.register_hook() was a silent no-op
• Provider now directly writes to PluginManager._hooks during initialize()
• 3 hooks registered: pre_llm_call, post_llm_call, on_session_end

Garbage cleanup

• Disabled auto-extraction of "Session topics" summaries (polluted search)
• Disabled "Session ended" markers (no value, session DB handles this)
• Cleaned 440 conversation entries from DB → 53 high-quality memories remain

Prefetch quality

• Category boost: conversation excluded (0.0x), corrections boosted (1.3x)
• Post-filter: min score 0.2, conversation category excluded
• Fetches top_k * 3 to avoid starving after filtering

Embedding model

• Switched back to Ark doubao-embedding-vision (from qwen3-embedding-4b)
• Recall improved 3-10x for Chinese queries
• Scores: 0.35-0.62 vs 0.01-0.16

Files changed

• plugin.yaml — v0.6.1, added provides_hooks
• __init__.py — updated register() with documentation
• provider.py — hook adapters, garbage cleanup, prefetch rework