feat(owned-cards): add owned-only workflow, multi-file parsing, and recommendations export\n\n- Prompt to use only owned cards (gated by presence of lists)\n- Support .txt/.csv owned lists, multi-select; commander exempt\n- Owned-only filtering + add guard; recommendations CSV/TXT when incomplete\n- CSV Owned column when not owned-only\n- Docs and Docker updated (owned_cards + config mounts)\n- CI: Windows EXE on tag; Docker Hub tag fix (no major.minor)\n- Changelog added; RELEASE_NOTES.md ignored

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+This format follows Keep a Changelog principles and aims for Semantic Versioning.
+
+## How we version
+- Semantic Versioning: MAJOR.MINOR.PATCH (e.g., v1.2.3). Pre-releases use -alpha/-beta/-rc.
+- Tags are created as `vX.Y.Z` on the default branch; releases and Docker images use that exact version and `latest`.
+- Change entries prefer the Keep a Changelog types: Added, Changed, Fixed, Removed, Deprecated, Security.
+- Link PRs/issues inline when helpful, e.g., (#123) or [#123]. Reference-style links at the bottom are encouraged for readability.
+
+## [Unreleased]
+
+### Added
+- Owned-cards workflow:
+  - Prompt (only if lists exist) to "Use only owned cards?"
+  - Support multiple file selection; parse `.txt` (1 per line) and `.csv` (any `name` column)
+  - Owned-only mode filters the pool to owned names; commander exempt
+  - Recommendations export when owned-only deck is incomplete (~1.5× missing) to `deck_files/[stem]_recommendations.csv` and `.txt`
+- CSV export includes an `Owned` column when not using owned-only
+- Windows EXE build via PyInstaller is produced on tag and attached to GitHub Releases
+
+### Changed
+- Rename folder from `card_library` to `owned_cards` (env override: `OWNED_CARDS_DIR`; back-compat respected)
+- Docker assets and docs updated:
+  - New volume mounts: `./owned_cards:/app/owned_cards` and `./config:/app/config`
+  - Compose and helper scripts updated accordingly
+- Release notes source is `RELEASE_NOTES_TEMPLATE.md`; `RELEASE_NOTES.md` ignored
+
+### Fixed
+- Docker Hub workflow no longer publishes a `major.minor` tag (e.g., `1.1`); only full semver (e.g., `1.2.3`) and `latest`
+
+---
+
+For prior releases, see the GitHub Releases page.