Live-reload (auto-update) for binary document previews

.github/workflows/ci.yml

@@ -38,3 +38,26 @@ jobs:
           node-version: '22'
       - run: npm install
       - run: npm test
+
+  e2e:
+    name: E2E (Playwright)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-go@v6
+        with:
+          go-version: '1.23'
+          cache: true
+      - uses: actions/setup-node@v6
+        with:
+          node-version: '22'
+      - run: npm install
+      # Install only the Chromium browser plus its OS dependencies.
+      - run: npx playwright install --with-deps chromium
+      - run: npm run e2e
+      - uses: actions/upload-artifact@v4
+        if: failure()
+        with:
+          name: playwright-report
+          path: playwright-report/
+          retention-days: 7

.gitignore

@@ -7,6 +7,12 @@
 /node_modules/
 /package-lock.json
 
+# Playwright E2E artifacts (dev-only; never committed)
+/test-results/
+/playwright-report/
+/blob-report/
+/.last-run.json
+
 # Editor / OS
 .DS_Store
 

CHANGELOG.md

@@ -5,6 +5,27 @@ All notable changes to reefdoc are documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.10.0] - 2026-06-26
+
+### Added
+- Binary document previews (PDF, DOCX, XLSX, PPTX) now **auto-update** when the
+  file changes on disk, matching markdown live-reload. The active preview
+  re-renders automatically; background tabs are flagged and re-render when you
+  switch to them. PDF/DOCX/XLSX render off-screen and swap in (no flicker, and a
+  half-written file leaves the previous preview intact); PPTX re-renders in
+  place. Scroll position is best-effort preserved across a refresh.
+- End-to-end browser tests (Playwright) covering the live-reload pipeline:
+  active-tab auto-update, the background "updated" marker, and the
+  deleted-file state. Run with `npm run e2e`.
+
+### Fixed
+- The file watcher now emits change events for binary document formats, not
+  just markdown, so binary previews actually receive live updates.
+- Deleting an open document on disk now shows the "this file no longer exists"
+  state in its tab, instead of leaving a stale preview. This previously did not
+  happen for any file type (deletion emits only a directory-tree event); the
+  open tab is now re-checked when its directory listing changes.
+
 ## [0.9.0] - 2026-06-25
 
 ### Added

README.md

@@ -42,7 +42,8 @@ go build -o reefdoc . && ./reefdoc ./docs
 - Preview PDF, DOCX, XLSX, and PPTX files in the browser (rendered client-side)
 - Auto table of contents from document headings
 - Dark / light theme (mermaid follows the theme)
-- Live reload: edit a file in any editor and the open tab updates
+- Live reload: edit a file in any editor and the open tab updates — including
+  PDF, DOCX, XLSX, and PPTX previews
 - Hyperlinks between documents — markdown links and Allium `use` paths open in a new tab
 
 ## Status
@@ -52,7 +53,9 @@ plus a vanilla-JS frontend (tree, tabs, markdown/mermaid/highlighting, TOC,
 themes, live reload). See [`docs/specs`](docs/specs) for the design and
 [`docs/plans`](docs/plans) for the implementation plan.
 
-Run the tests with `go test ./...` and `npm test`.
+Run the tests with `go test ./...` and `npm test`. End-to-end browser tests
+(Playwright) live in `web/e2e/`; run them with `npm run e2e` (first time:
+`npx playwright install chromium`).
 
 ## Architecture