chore(release): cut v1.1.1 (marketplace schema + pyproject version sync hotfix)

[SHcommit]

Summary

Cut release v1.1.1 (PATCH). Brings develop (now at 3c8ab11 after PR #43 merge) to master. The hotfix closes two gaps discovered while deploying v1.1.0:

1. claude plugin marketplace add was blocked by a missing owner field in .claude-plugin/marketplace.json (Claude Code v2.1.263 schema requirement). Fixed in PR fix(release): marketplace.json owner + pyproject.toml version sync for v1.1.1 #43 by adding $schema, top-level description, owner.name.
2. v1.1.0 wheel/sdist shipped with the wrong version (1.0.1) because pyproject.toml's version field was not in scripts/sync_version.py's sync surface. Fixed in PR fix(release): marketplace.json owner + pyproject.toml version sync for v1.1.1 #43 by adding TOML_VERSION_SPECS + sync_toml_version() and asserting the [project] table is present in require_known_paths(). Regression tests added.

SemVer rationale

Category	Count	Bump type
feat:	0	—
fix:	2 (marketplace schema, pyproject version drift)	PATCH
docs/test/chore:	rest	—

→ Result: 1.1.0 → 1.1.1 (PATCH). The v1.1.0 features already shipped; this PR only fixes release-artifact bugs and the marketplace-add path.

What is in this release branch

The branch release/v1.1.1 is a fast-forward of develop at 3c8ab11 (PR #43 + the pr-title-check re-trigger commit). No additional commits; no source under skills/adr-toolkit/scripts/ changed beyond what PR #43 already landed.

Release flow (per AGENTS.md)

1. This PR (release/v1.1.1 → master) merges.
2. Back-merge master → develop (follow-up PR).
3. Tag v1.1.1 from master and push — .github/workflows/release.yml runs pytest + sync_version --check (now also covering pyproject.toml) + tag == VERSION, then publishes a GitHub Release with the skill tarball + sha256 + Python wheel/sdist. With this hotfix, the wheel/sdist will correctly be adr_toolkit-1.1.1-* instead of 1.0.1. PyPI publish via Trusted Publisher (continue-on-error: true, tracked in improvements.md).
4. Delete the short-lived release/v1.1.1 branch.

Verification

• PR fix(release): marketplace.json owner + pyproject.toml version sync for v1.1.1 #43 CI: 13/13 pass (dependency-audit, examples-drift, harness-parity, label-pr, lint, pr-title-check, pytest × 6 OS/version matrix, type-check, version-drift).
• scripts/sync_version.py --check: exit 0 (now also covers pyproject.toml).
• This release branch is identical to develop@3c8ab11, so the same green CI applies.

Examples Impact

• N/A — release-wrap PR, no examples/ change.

ADR Impact

• N/A — bugfix release, no architectural decision changed.