docs(changelog): 2.1.0

[vstack-release-bot]

🤖 I have created a release beep boop

2.1.0 (2026-05-02)

Features

• cli: add dry-run install with type/name selector summary and conflict resolution hints (c783552)

Fixes

• ci: use job-scoped PyPI fallback token checks (267417a)
• cli: align dry-run summary guidance and tests (c11b67d)

Maintenance

• ci: add trusted publishing fallback and publish concurrency group (ef4702d)
• deps: bump cachetools to 7.1.0 and tox to 4.53.1 (5d60804)
• docs: add Development Commands and CLI Architecture to copilot-instructions (5bf4c24)
• docs: add first-install dry-run workflow and preserved-file conflict resolution (fa8ef18)
• docs: fix BaseCommand signature, model type, role assignments, and contributor workflow (45a19be)
• docs: fix maintainer role, stale paths, gate count, and tool names in ADRs 001-012 (dcf596a)

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[vstack-release-bot]

🤖 Created releases:

• 2.1.0

🌻