build(ci): uv toolchain, release-please semver; feat(skills): vendor tools self-contained (no symlinks, relative refs)

- bin/db/psql-yq + bin/web/search + tools/{yamlout,websearch} vendored as real files
- bin/db/ssh-tunnel added (OnlyOffice VM pg on 5433)
- skills reference local bin/ paths; no agent-skills/abs links in git
- pyproject.toml + uv.lock; CI installs via uv sync --frozen
- release-please auto-tags semver from conventional commits when green
- LICENSE MIT, badges/mermaid README

docker/Dockerfile

@@ -0,0 +1,30 @@
+# syntax=docker/dockerfile:1
+FROM python:3.12-slim AS base
+
+ENV PYTHONUNBUFFERED=1 \
+    PYTHONDONTWRITEBYTECODE=1 \
+    PIP_NO_CACHE_DIR=1 \
+    HF_HOME=/home/2dph/.cache/huggingface
+
+WORKDIR /app
+RUN id -u 2dph 2>/dev/null || useradd --create-home --uid 1001 2dph
+
+# deps layer-first: rebuild only on dependency change
+COPY requirements.lock.txt /tmp/requirements.lock.txt
+RUN python -m pip install --no-cache-dir -r /tmp/requirements.lock.txt \
+    && rm /tmp/requirements.lock.txt
+
+COPY . .
+
+# wait for the actual tools (bin/*) to exist before wiring docker helpers
+COPY docker/kb-watch /app/.dockerbin/kb-watch
+COPY docker/serve /app/.dockerbin/serve
+RUN chmod +x /app/.dockerbin/kb-watch /app/.dockerbin/serve \
+    && chown -R 2dph:2dph /app
+USER 2dph
+
+ENV PATH="/app/.dockerbin:${PATH}"
+HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
+    CMD python -c "import model2vec, ladybug, mistune; print('ok')" || exit 1
+
+ENTRYPOINT ["/app/docker-entrypoint.sh"]