v0.3.0 — CJK search, RRF fusion, LLM search hooks, ontology-backed agents

v0.3.0 — CJK search, RRF fusion, LLM search hooks, ontology-backed agents

Ontology search engine (Track A)

• Korean/CJK search now works. CJK bigram tokenizer + FTS5 trigram index; existing databases migrate and re-embed automatically on first open (schema v2).
• RRF hybrid ranking replaces mixed-scale fixed-weight fusion, computed over a bounded candidate pool (no full-corpus Python cosine scan).
• Host-LLM search hooks (optional, zero extra cost): query expansion and rerank callables injectable by the host CLI runtime (Claude Code / Codex). No embedding API or key required.
• Data-sovereignty gate: chunks scoped private/confidential are never passed to cloud rerank hooks — enforced inside the search pipeline and covered by a behavioral test.
• 15% chunk overlap so context is not cut at window boundaries.

Builder wiring (Track B)

• New ontology-backed-agent overlay mode: corpus-dependent requests generate retrieval-first, source-cited agents (modes/ontology-backed-agent.md).
• Rule-based governance contract injection via .agentlas/contract-injection-map.json — only the contracts matching the agent's task traits are injected (no more blanket 26-contract packages).
• Golden-path reference: examples/ontology-proposal-agent/ with a behavioral verify.sh (ingest → retrieve → draft → separate-context verify → human gate).

Architecture (Track C)

• scripts/sync-adapters.sh renders the canonical core into runtime adapter mirrors; --check is wired into verify-package.sh and blocks drift.
• loop_policy (none / self-correct / verified) derived from task risk tier; verified work uses a separate-context verifier (no self-grading).
• scripts/verify-mcp-surface.sh guards the agentlas MCP registration contract across Claude Code, Codex, Gemini, and Antigravity.
• bump-version.sh no longer hard-codes a local web path (uses AGENTLAS_WEB_INSTALL_GUIDE).

READMEs updated in en/ko/ja/zh-CN/hi. All verification gates pass: 24 unit tests, verify-package.sh, public_safety_check.sh, MCP surface check, adapter drift check, example agent behavioral verify.