hunk 0.18.0 - #297803

## What's Changed
* docs: update Homebrew release guidance by @benvinegar in https://github.com/modem-dev/hunk/pull/515
* fix(config): read Windows user-profile config by @benvinegar in https://github.com/modem-dev/hunk/pull/533
* feat: STML terminal markup for agent comments — guide, preview, live-width feedback by @benvinegar in https://github.com/modem-dev/hunk/pull/512
* fix: upgrade OpenTUI for renderer stability by @benvinegar in https://github.com/modem-dev/hunk/pull/538
* fix: reduce retained geometry memory in large reviews by @matthew-hre in https://github.com/modem-dev/hunk/pull/521
* feat(ui): prompt to save view preferences on quit by @benvinegar in https://github.com/modem-dev/hunk/pull/468
* feat(watch): replace 250 ms watch polling with evented filesystem observation by @elucid in https://github.com/modem-dev/hunk/pull/531
* chore(benchmarks): backfill 0.17.1 release snapshot by @benvinegar in https://github.com/modem-dev/hunk/pull/547
* fix(ui): copy selection misaligns on wide (CJK) characters by @endotakuya in https://github.com/modem-dev/hunk/pull/548
* fix(cli): reject partially numeric line and hunk values by @fallintoplace in https://github.com/modem-dev/hunk/pull/535
* fix(ui): wrap agent note text by terminal cells by @kataokatsuki in https://github.com/modem-dev/hunk/pull/567
* fix(pager): extend row backgrounds to host edge by @benvinegar in https://github.com/modem-dev/hunk/pull/571
* fix(session): refresh daemons for STML payloads by @benvinegar in https://github.com/modem-dev/hunk/pull/572
* docs(markup): clarify native note composition by @benvinegar in https://github.com/modem-dev/hunk/pull/573
* feat(theme): support raw Shiki syntax scopes by @benvinegar in https://github.com/modem-dev/hunk/pull/570
* fix(theme): surface legacy syntax translation by @benvinegar in https://github.com/modem-dev/hunk/pull/574
* fix(review): save draft notes exactly once under rapid Ctrl+S by @endotakuya in https://github.com/modem-dev/hunk/pull/581
* fix(ui): distinguish root files in sidebar by @BowlOfSoup in https://github.com/modem-dev/hunk/pull/519
* fix(ui): restore threaded rendering on macOS by @benvinegar in https://github.com/modem-dev/hunk/pull/539
* feat: make diff tab width configurable by @benvinegar in https://github.com/modem-dev/hunk/pull/588
* feat(stml): require experimental opt-in by @benvinegar in https://github.com/modem-dev/hunk/pull/589
* fix(cli): lazy-load OpenTUI for headless commands by @benvinegar in https://github.com/modem-dev/hunk/pull/590
* perf(ui): optimize terminal cell width measurement (#579) by @kazu728 in https://github.com/modem-dev/hunk/pull/586
* feat(skill): generate the hunk-review skill from a typed agent surface by @benvinegar in https://github.com/modem-dev/hunk/pull/596
* fix(update): show Nix-aware upgrade guidance by @benvinegar in https://github.com/modem-dev/hunk/pull/598
* perf(ui): optimize wrapped Unicode rendering by @benvinegar in https://github.com/modem-dev/hunk/pull/601
* docs(website): add Starlight documentation site by @benvinegar in https://github.com/modem-dev/hunk/pull/603
* feat(website): unify marketing and docs by @benvinegar in https://github.com/modem-dev/hunk/pull/604
* feat(extensions): experimental TypeScript extension system (phase 1) by @benvinegar in https://github.com/modem-dev/hunk/pull/599
* feat(website): unify marketing and docs design by @benvinegar in https://github.com/modem-dev/hunk/pull/605
* feat(extensions): folder extensions with package.json manifests by @benvinegar in https://github.com/modem-dev/hunk/pull/606
* Extensions can replace the sidebar with custom React components by @benvinegar in https://github.com/modem-dev/hunk/pull/609
* feat(website): add community videos and an agent-review section to the landing page by @benvinegar in https://github.com/modem-dev/hunk/pull/610
* feat(extensions): keyboard commands and additive multi-sidebar views by @benvinegar in https://github.com/modem-dev/hunk/pull/611
* feat(ui): drive menus and help from the command table, and add an Extensions menu by @benvinegar in https://github.com/modem-dev/hunk/pull/614
* fix(session): support IPv6 loopback broker URLs by @benvinegar in https://github.com/modem-dev/hunk/pull/613
* feat(extensions): give command handlers the review selection by @benvinegar in https://github.com/modem-dev/hunk/pull/616
* fix(website): track documentation visits by @benvinegar in https://github.com/modem-dev/hunk/pull/620
* feat(extensions): dialog primitives for command handlers by @benvinegar in https://github.com/modem-dev/hunk/pull/617
* feat(extensions): inject resolved sidebar keybindings by @benvinegar in https://github.com/modem-dev/hunk/pull/615
* docs: extract theme configuration guide by @benvinegar in https://github.com/modem-dev/hunk/pull/622
* feat(extensions): expand event surface by @benvinegar in https://github.com/modem-dev/hunk/pull/619
* fix(nix): keep flake evaluable on nixpkgs without x86_64-darwin by @elucid in https://github.com/modem-dev/hunk/pull/621
* fix(website): upgrade Astro security dependencies by @benvinegar in https://github.com/modem-dev/hunk/pull/623
* Support .tsx and .jsx extension entries in discovery by @benvinegar in https://github.com/modem-dev/hunk/pull/625
* refactor(architecture): establish application boundaries by @benvinegar in https://github.com/modem-dev/hunk/pull/624
* feat(extensions): expose public hunk summaries on file views by @benvinegar in https://github.com/modem-dev/hunk/pull/626
* fix(deps): upgrade shell-quote security patch by @benvinegar in https://github.com/modem-dev/hunk/pull/627
* docs(extensions): commit the scrollbox ref contract for custom sidebars by @benvinegar in https://github.com/modem-dev/hunk/pull/630
* feat(extensions): give command handlers guarded review navigation by @benvinegar in https://github.com/modem-dev/hunk/pull/629
* refactor(session): consolidate internal session modules by @benvinegar in https://github.com/modem-dev/hunk/pull/628
* docs(website): add a self-contained Extend section to the docs site by @benvinegar in https://github.com/modem-dev/hunk/pull/631
* Restyle community video cards as paused YouTube embeds by @benvinegar in https://github.com/modem-dev/hunk/pull/641
* docs(website): add keybindings guide to the docs site by @benvinegar in https://github.com/modem-dev/hunk/pull/634
* feat(website): center and widen the docs shell on wide viewports by @benvinegar in https://github.com/modem-dev/hunk/pull/642
* feat(website): rebuild the landing page feature section around real TUI captures by @benvinegar in https://github.com/modem-dev/hunk/pull/643
* feat(extensions): add custom file previews by @benvinegar in https://github.com/modem-dev/hunk/pull/632
* docs(extensions): document custom file previews by @benvinegar in https://github.com/modem-dev/hunk/pull/644
* fix(ui): step keys scrolling multiple lines after a review-stream click by @HackAttack in https://github.com/modem-dev/hunk/pull/645
* feat(pager): give pager mode the full review controls by @HackAttack in https://github.com/modem-dev/hunk/pull/647
* ci(release): switch npm publishing to trusted publishing (OIDC) by @benvinegar in https://github.com/modem-dev/hunk/pull/640
* fix(ui): route keys by ownership so modal surfaces stop double-handling them by @elucid in https://github.com/modem-dev/hunk/pull/649
* refactor(ui): isolate extension dialog lifecycle by @benvinegar in https://github.com/modem-dev/hunk/pull/651
* ci(release): verify generated prerelease notes by @benvinegar in https://github.com/modem-dev/hunk/pull/654
* perf(ui): skip inactive file-view preparation by @benvinegar in https://github.com/modem-dev/hunk/pull/652
* fix(ui): keep file navigation from losing the file it just jumped to by @elucid in https://github.com/modem-dev/hunk/pull/655
* chore(release): prepare 0.18.0-beta.0 by @benvinegar in https://github.com/modem-dev/hunk/pull/653
* chore(release): link changelog pull requests by @benvinegar in https://github.com/modem-dev/hunk/pull/657
* chore(release): finalize 0.18.0-beta.0 metadata by @benvinegar in https://github.com/modem-dev/hunk/pull/660
* fix(release): include provenance in platform packages by @benvinegar in https://github.com/modem-dev/hunk/pull/661
* chore(deps): bump the github-actions group with 4 updates by @dependabot[bot] in https://github.com/modem-dev/hunk/pull/659
* fix(ui): preserve file headers on narrow terminals by @benvinegar in https://github.com/modem-dev/hunk/pull/668
* test(git): isolate fixture repos from the developer's Git config by @HackAttack in https://github.com/modem-dev/hunk/pull/679
* fix(git): display quoted Unicode paths by @benvinegar in https://github.com/modem-dev/hunk/pull/670
* fix(ui): preserve syntax state across folded hunks by @benvinegar in https://github.com/modem-dev/hunk/pull/669
* refactor(ui): isolate file presentation state by @benvinegar in https://github.com/modem-dev/hunk/pull/656
* feat(review): mark the current line and anchor notes to it by @loganthomas in https://github.com/modem-dev/hunk/pull/662
* feat(extensions): let file views refresh their prepared layouts by @benvinegar in https://github.com/modem-dev/hunk/pull/673
* feat(extensions): add host-mediated workspace document reads and writes by @benvinegar in https://github.com/modem-dev/hunk/pull/674
* feat(extensions): add interactive file-view modes by @benvinegar in https://github.com/modem-dev/hunk/pull/675
* feat(ui): show changed-file count in menu bar by @benvinegar in https://github.com/modem-dev/hunk/pull/684
* fix(ui): bound current-line navigation costs by @benvinegar in https://github.com/modem-dev/hunk/pull/685
* chore(release): prepare 0.18.0 by @benvinegar in https://github.com/modem-dev/hunk/pull/687
New Contributors

@matthew-hre made their first contribution in fix: reduce retained geometry memory in large reviews modem-dev/hunk#521
@endotakuya made their first contribution in fix(ui): copy selection misaligns on wide (CJK) characters modem-dev/hunk#548
@fallintoplace made their first contribution in fix(cli): reject partially numeric line and hunk values modem-dev/hunk#535
@kataokatsuki made their first contribution in fix(ui): wrap agent note text by terminal cells modem-dev/hunk#567
@BowlOfSoup made their first contribution in fix(ui): distinguish root files in sidebar modem-dev/hunk#519
@kazu728 made their first contribution in perf(ui): optimize terminal cell width measurement (#579) modem-dev/hunk#586
@HackAttack made their first contribution in fix(ui): step keys scrolling multiple lines after a review-stream click modem-dev/hunk#645
@loganthomas made their first contribution in feat(review): mark the current line and anchor notes to it modem-dev/hunk#662

Full Changelog: modem-dev/hunk@v0.17.0...v0.18.0

View the full release notes at https://github.com/modem-dev/hunk/releases/tag/v0.18.0.