docs: boocode-lift-analysis, openspec change docs, codesight cache, deps

- Add boocode-lift-analysis.md: comprehensive 30-repo lift matrix across 25 domains
- Add openspec/ change docs: domain2-code-intelligence, domain3-multi-agent, impeccable-wave, streaming-codeblocks
- Update .gitignore: .impeccable/, .omo/, bun.lock, DESIGN.md, PRODUCT.md
- Update dependencies in package.json + pnpm-lock.yaml
- Update .codesight/ analysis cache

.codesight/config.md

@@ -25,8 +25,11 @@
 - `CONTAINER_GUIDANCE_FILE` **required** — apps/server/src/services/__tests__/system-prompt.test.ts
 - `CONTEXT7_API_KEY` (has default) — .env
 - `DATABASE_URL` (has default) — .env.example
+- `DEEPSEEK_API_KEY` (has default) — .env
+- `DEEPSEEK_BASE_URL` (has default) — .env
 - `DEFAULT_MODEL` (has default) — .env.example
 - `DEV_REMOTE_USER` **required** — apps/web/vite.config.ts
+- `EMBEDDING_MODEL_PATH` **required** — apps/server/src/services/memory/embeddings.ts
 - `GITEA_BASE_URL` (has default) — .env
 - `GITEA_SSH_HOST` (has default) — .env
 - `GITEA_TOKEN` (has default) — .env
@@ -34,6 +37,7 @@
 - `LLAMA_SWAP_URL` (has default) — .env.example
 - `MCP_TEST_MISSING` **required** — apps/server/src/services/__tests__/mcp-config.test.ts
 - `MCP_TEST_SECRET` **required** — apps/server/src/services/__tests__/mcp-config.test.ts
+- `MEMORY_SEARCH` **required** — apps/server/src/services/memory/recall.ts
 - `NODE_ENV` (has default) — .env.example
 - `PORT` (has default) — .env.example
 - `POSTGRES_PASSWORD` (has default) — .env.example
@@ -48,3 +52,7 @@
 - `Dockerfile`
 - `apps/web/vite.config.ts`
 - `docker-compose.yml`
+
+## Key Dependencies
+
+- better-sqlite3: ^11.10.0