docs: prep vesseld v0.1.0 GA (Status, TCP quickstart, vesseld-with-history demo)

[lIang70]

Summary

Three doc-only changes to clear the runway for cutting vessel/v0.1.0 and vesseld/v0.1.0 GA tags. No Go code touched.

• README.md — rewrite Status section against shipped reality (Postgres/SQLite checkpointers, OTel, Prometheus /metrics, seven-suite eval/ harness all in place); refresh the v0.2 / v0.3 milestone descriptions; add a TCP + bearer-token snippet to the Quickstart so remote access is documented before users hit it.
• examples/vesseld-multi-vessel/README.md — add a "Remote access via TCP + bearer token" section with the tokenFile YAML and a curl -H "Authorization: Bearer …" example; mTLS explicitly tagged as v0.2 scope.
• examples/vesseld-with-history/ (new) — single-vessel demo that wires a shared HistoryStore (ref: buffer) so the agent remembers earlier turns of the same context_id conversation. README is explicit that v0.1.0 only ships in-memory buffer history; cross-restart persistence is deferred to v0.2's Compacted flavor + SessionStore.
• CHANGELOG.md — add vessel/v0.1.0, vesseld/v0.1.0-rc.2 (vessel rc.2 dep bump + supervisor race fix), and vesseld/v0.1.0 GA entries with known-limitations callouts.

Test plan

• make vet — clean across all modules
• make test-e2e — tests/e2e/vesseld (29.5s) + tests/e2e/retrieval (0.5s) both green
• tests/quality/vessel — 1.3s green
• vesseld validate -R on both vesseld-multi-vessel and vesseld-with-history → ok
• vesseld plan -R on vesseld-with-history confirms HistoryStore ref resolution
• Wait for required CI status check to pass on the PR

Note: make test locally trips a known live-LLM hang in tests/conformance/llm after 601s (HTTP/2 TLS read stuck) because a populated .env defeats the suite's self-skip path. Not a regression — this PR touches zero Go.

Follow-up

Once this merges, the planned tag sequence is:

git tag -a vessel/v0.1.0       -m "vessel v0.1.0 — runtime GA"
git tag -a vesseld/v0.1.0-rc.2 -m "vesseld v0.1.0-rc.2 — vessel rc.2 dep bump"
git tag -a vesseld/v0.1.0      -m "vesseld v0.1.0 — daemon GA"
git push origin vessel/v0.1.0 vesseld/v0.1.0-rc.2 vesseld/v0.1.0

release-vesseld.yml then auto-builds the 5-arch matrix + SHA-256s. auto-tag.yml is a no-op for this PR (filters on sdk|sdkx|voice|vessel/** paths, none of which we touched).

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