Publish the final Server candidate against Workflow 2.0.0-rc.55

[rmcdaniel]

Objective

Publish one Server release candidate that consumes the qualified Workflow 2.0.0-rc.55 package and becomes the exact Server input for the final 2.0 conformance cycle.

Current evidence

• Workflow 2.0.0-rc.55 is installable from Packagist and points to source commit 720512eefa0a5a97afeb410797cff8803ec76864.
• A preserved Server worktree already contains the dependency, release-metadata, Docker, Helm, and affected sequence-assertion changes.
• Focused child-workflow resume and exact Composer provenance checks passed locally.

Acceptance criteria

• Server source and lockfile pin Workflow 2.0.0-rc.55 at the published source identity.
• Server, Docker, and Helm release metadata agree on the next Server candidate version.
• Resume-sequence assertions describe the current protocol contract rather than a stale fixture sequence.
• Focused tests and the normal Server GitHub Actions suite pass on the pull request.
• Repository-owned GitHub Actions publish the candidate image and release artifacts.
• The published image reports the exact Workflow provenance and is used by the fixed final conformance tuple.

Stable 2.0.0 is explicitly out of scope for this issue and remains a separate human authorization.

[rmcdaniel]

Source candidate merged through #63 at 37aa3abeeadd4aa6d337c55e1a37f0abd206899a with all pull-request checks green.

This issue is intentionally reopened because publication and exact-image provenance remain acceptance criteria. The next step is the immutable 2.0.0-rc.69 tag and repository-owned Release workflow; the issue will close only after Docker Hub/GHCR publication and Workflow 2.0.0-rc.55 provenance are verified.

[rmcdaniel]

Candidate publication is complete.

• Source: 37aa3abeeadd4aa6d337c55e1a37f0abd206899a
• Release: https://github.com/durable-workflow/server/releases/tag/2.0.0-rc.69
• Repository-owned publication: https://github.com/durable-workflow/server/actions/runs/33410258796
• Docker Hub and GHCR manifest digest: sha256:92d78e4eaa61667eb02f4f238ba51cce322d832f23914d882e834e38e4e9f753
• Platforms: linux/amd64, linux/arm64
• Workflow package: 2.0.0-rc.55 at 720512eefa0a5a97afeb410797cff8803ec76864
• Helm chart: 0.1.65, anonymous OCI install passed
• Exact publication and protocol-catalog verification: passed
• The candidate is frozen into Durable Workflow 2.0 launch .github#97 as the Server member of the final seven-component tuple.

Stable publication remains out of scope.