Amr Gharbeia dfe318425f Add v0.2.0 features: vector search + tool permissions ...

- Local vector search: Ollama embeddings + semantic search
  - get-embedding with caching
  - cosine-similarity computation
  - semantic-search cognitive tool
  - :semantic-search tool for LLM queries

- Tool permission tiers: security gating for cognitive tools
  - Three tiers: :allow, :deny, :ask
  - Gate in execute-tool-action before tool runs
  - Defaults: :deny for shell/delete-file, :ask for eval/write-file
  - :tool-permissions cognitive tool for management

- Embedding provider support: Ollama AND llama.cpp
  - EMBEDDING_PROVIDER env var
  - EMBEDDING_MODEL env var
  - LLAMA_HOST for llama.cpp server

- .env.example: Add embedding config variables
- Fix parse-message in communication.lisp

- Update ASDF: add test files, tool-permissions skill

All 60 tests pass (6 suites x 100%)

2026-04-23 13:43:50 -04:00

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