Merge pull request 'fix(gitea): pin rebuilt image by digest, match upstream CMD form' (#123) from fix/gitea-mcp-digest-pin into main

Two corrections to the shell-bearing rebuild.

**Pin by digest.** It copied from `:latest`, so a rebuild silently ships
whatever upstream has moved to. When a probe started failing right after a
rebuild I could not tell a version change from a broken build, and burned
time on the wrong one — the binary's own `--version` prints 1.1.0 while
the image label says 1.6.0, so that was a red herring too. Now pinned to
sha256:dda8d56e…, which IS the running 1.6.0.

**CMD, not ENTRYPOINT.** Upstream sets `Cmd: ["/app/gitea-mcp"]` with no
entrypoint. mcpd maps a server's `command` to k8s `args`, which REPLACES
Cmd but only APPENDS to an ENTRYPOINT — so the ENTRYPOINT form would have
changed how the binary is invoked for any server that sets a command.
Matching upstream's shape keeps the non-injected path byte-identical.

gitea also needs `entrypoint` on its server row: its `command` is [], so
there is nothing for the injector wrapper to wrap without it. Set to
["/usr/local/bin/gitea-mcp"] via apply -f (patch cannot express an array).

Verified live: gitea RUNNING/healthy on secretDelivery: injector, with
vault-agent-init present and the command wrapped as
  ["/bin/sh","-c",". /vault/secrets/gitea-creds; exec \"$0\" \"$@\"",
   "/usr/local/bin/gitea-mcp"]
`get_me` — which needs read:user, the scope that started this whole
session — returns the real account. Plaintext credentials across all
mcpctl server pod specs: 4 -> 0.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018vybEitX4FykeMatKe5Xki

deploy/Dockerfile.gitea-mcp

@@ -26,11 +26,18 @@ RUN apt-get update \
     && apt-get install -y --no-install-recommends ca-certificates \
     && rm -rf /var/lib/apt/lists/*
 
-COPY --from=docker.gitea.com/gitea-mcp-server:latest /app/gitea-mcp /usr/local/bin/gitea-mcp
+# Pinned by DIGEST, not :latest. `latest` moves, and a rebuild that silently
+# ships a different server version is indistinguishable from a broken rebuild —
+# chased exactly that here when a probe started failing after a rebuild.
+# This digest is gitea-mcp-server 1.6.0 (label org.opencontainers.image.version),
+# the build that was running when this image was introduced.
+# To bump: skopeo inspect docker://docker.gitea.com/gitea-mcp-server:latest
+COPY --from=docker.gitea.com/gitea-mcp-server@sha256:dda8d56e6a91fa89cad186becc27c7aa83d74acdd5dc69f89af840d7bb78a631 /app/gitea-mcp /usr/local/bin/gitea-mcp
 
 WORKDIR /app
 
-# Kept as ENTRYPOINT so the plain (non-injected) path behaves exactly like
-# upstream. mcpd REPLACES this with the sourcing wrapper when the server opts
-# into injected delivery — that is why a shell has to exist in the image.
-ENTRYPOINT ["/usr/local/bin/gitea-mcp"]
+# CMD, not ENTRYPOINT — matching upstream, which sets Cmd ["/app/gitea-mcp"] and
+# no entrypoint. mcpd maps a server's `command` to k8s `args`, which REPLACES
+# Cmd but only appends to an ENTRYPOINT; keeping the same form means the plain
+# (non-injected) path behaves byte-identically to upstream.
+CMD ["/usr/local/bin/gitea-mcp"]