plugin: add server-side Swift container skills

[gaelic-ghost]

Summary

• Add Server-Side Swift Docker and Apple Containerization workflow skills.
• Harden the new guidance with runtime safety, Docker build context, Swift runtime-resource, and Apple container capability-probe checks.
• Bump the shared Socket version to 6.15.0.

Verification

• uv run scripts/validate_socket_metadata.py
• git diff --check
• local checkout smoke test with temporary CODEX_HOME for server-side-swift marketplace and manifest

Summary by CodeRabbit

• New Features

  • Added Docker workflow guidance for containerizing server-side Swift services
  • Added Apple Containerization workflow for Apple silicon container tooling
  • Expanded server-side Swift plugin scope to explicitly cover Docker and Apple Containerization topics

• Documentation

  • Updated plugin catalog entries and roadmap to reflect new containerization workflows
  • Added comprehensive guides for Docker and Apple Containerization workflows

• Chores

  • Version bumped to 6.15.0 across all plugins and the main project

[coderabbitai]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: d0f42510-46b5-49d5-bd71-e675f5b29ead

📥 Commits

Reviewing files that changed from the base of the PR and between cdd53e8 and 50c4273.

📒 Files selected for processing (1)

• README.md

📝 Walkthrough

Walkthrough

This PR releases version 6.15.0 across all plugins and updates the server-side-swift plugin to surface Docker and Apple Containerization workflows with two comprehensive skill documentation files covering planning, validation, handoff rules, and guardrails for each approach.

Changes

Version Release and Server-Side Swift Workflow Expansion

Layer / File(s)	Summary
Version 6.15.0 bump across plugins pyproject.toml, plugins/*/\*.codex-plugin/plugin.json, plugins/*/pyproject.toml	All plugin manifests and Python packaging files updated from version 6.14.5 to 6.15.0 across agent-plugin-skills, android-dev-skills, apple-dev-skills, cardhop-app, dotnet-skills, productivity-skills, python-skills, rust-skills, spotify, swiftasb-skills, things-app, and web-dev-skills.
Server-side-swift plugin metadata expansion README.md, ROADMAP.md, plugins/server-side-swift/.codex-plugin/plugin.json, plugins/server-side-swift/AGENTS.md	Server-side-swift catalog entry expanded to include Docker and Apple Containerization topics. Roadmap milestone 8 marks both Docker and Apple Containerization workflows as completed. Plugin keywords, shortDescription, longDescription, and defaultPrompt extended to surface containerization-related guidance. Two new local documentation rules added directing authors to official Docker and apple/containerization sources.
Docker workflow skill guide plugins/server-side-swift/skills/docker-workflow/SKILL.md	New 182-line skill document defining Docker/Compose workflow for server-side Swift containerization, covering purpose and scope, source references, planning workflow checklist, Dockerfile shape best practices (multi-stage, cache-friendly, non-root), build context and runtime asset handling, runtime safety checks, Compose conventions, Vapor/Hummingbird handoff rules, testing and validation order, expected output structure, and guardrails on secrets and unsafe deployment patterns.
Apple Containerization workflow skill guide plugins/server-side-swift/skills/apple-containerization-workflow/SKILL.md	New 167-line skill document defining Apple Containerization and container CLI guidance for Apple silicon server-side Swift, covering scope boundaries from generic Docker, planning workflow, capability probing, container CLI requirements, direct Containerization Swift API usage, Vapor/Hummingbird handoffs, testing procedures, required output shape fields, and guardrails preventing Docker/Apple tooling confusion, credential exposure, and hardware requirement obscuring.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• gaelic-ghost/socket#54: Introduced the initial server-side-swift plugin manifest and Vapor workflow; this PR extends it with Docker and Apple Containerization workflows on the same plugin surface.
• gaelic-ghost/socket#57: Also updates plugins/server-side-swift/.codex-plugin/plugin.json and roadmap entries while expanding different workflow scopes (persistence vs containerization).
• gaelic-ghost/socket#48: Updates the same version fields in shared plugin metadata files across the repository.

🐰 A Release Grows the Swift Nest

Six point fifteen, the version flows,
Docker dreams and Apple's repose,
Containerization skills take flight,
Server-side Swift shines so bright! 🚀

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: adding server-side Swift container skills (Docker and Apple Containerization workflows) as confirmed by file summaries and PR objectives.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch plugin/container-skills

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@README.md`:
- Line 85: Replace the verbose inventory-style entry for `server-side-swift` in
the root README with a short, user-focused description that communicates what
the plugin provides (e.g., "server-side Swift support for building and running
services with Swift frameworks like Vapor and Hummingbird") and remove
implementation/workflow details (migration, generated transport, diagnostics,
Docker, CI, etc.); keep the deeper workflow and developer instructions in the
plugin's own README or docs and ensure the root README points users to that
plugin-local documentation for advanced setup.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 1d65f341-fe65-49a4-91f7-0503e41579dd

📥 Commits

Reviewing files that changed from the base of the PR and between 0f96f90 and cdd53e8.

⛔ Files ignored due to path filters (8)

• plugins/agent-plugin-skills/uv.lock is excluded by !**/*.lock
• plugins/apple-dev-skills/uv.lock is excluded by !**/*.lock
• plugins/cardhop-app/mcp/uv.lock is excluded by !**/*.lock
• plugins/productivity-skills/uv.lock is excluded by !**/*.lock
• plugins/python-skills/uv.lock is excluded by !**/*.lock
• plugins/things-app/mcp/uv.lock is excluded by !**/*.lock
• plugins/things-app/uv.lock is excluded by !**/*.lock
• uv.lock is excluded by !**/*.lock

📒 Files selected for processing (26)

• README.md
• ROADMAP.md
• plugins/agent-plugin-skills/.codex-plugin/plugin.json
• plugins/agent-plugin-skills/pyproject.toml
• plugins/android-dev-skills/.codex-plugin/plugin.json
• plugins/apple-dev-skills/.codex-plugin/plugin.json
• plugins/apple-dev-skills/pyproject.toml
• plugins/cardhop-app/.codex-plugin/plugin.json
• plugins/cardhop-app/mcp/pyproject.toml
• plugins/dotnet-skills/.codex-plugin/plugin.json
• plugins/productivity-skills/.codex-plugin/plugin.json
• plugins/productivity-skills/pyproject.toml
• plugins/python-skills/.codex-plugin/plugin.json
• plugins/python-skills/pyproject.toml
• plugins/rust-skills/.codex-plugin/plugin.json
• plugins/server-side-swift/.codex-plugin/plugin.json
• plugins/server-side-swift/AGENTS.md
• plugins/server-side-swift/skills/apple-containerization-workflow/SKILL.md
• plugins/server-side-swift/skills/docker-workflow/SKILL.md
• plugins/spotify/.codex-plugin/plugin.json
• plugins/swiftasb-skills/.codex-plugin/plugin.json
• plugins/things-app/.codex-plugin/plugin.json
• plugins/things-app/mcp/pyproject.toml
• plugins/things-app/pyproject.toml
• plugins/web-dev-skills/.codex-plugin/plugin.json
• pyproject.toml