docs: Update changelog and README for v0.29.0

- Add project switcher feature documentation
- Document @ shortcut and config format
- Update td dependency to v0.17.0

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: marcus

CHANGELOG.md

@@ -2,6 +2,15 @@
 
 All notable changes to sidecar are documented here.
 
+## [v0.29.0] - 2026-01-19
+
+### Features
+- **Project Switcher**: Press `@` to switch between configured projects without restarting sidecar. Configure projects in `~/.config/sidecar/config.json` with `projects.list`. Supports keyboard navigation (j/k, Enter) and mouse interaction. State (active plugin, cursor positions) is remembered per project.
+- **File Browser**: Toggle git-ignored file visibility with `I` key, state persists across sessions
+
+### Dependencies
+- Updated embedded td to v0.17.0
+
 ## [v0.28.0] - 2026-01-19
 
 ### Features

README.md

@@ -149,11 +149,35 @@ Manage git worktrees for parallel development with integrated agent support. Cre
 - Auto-adds sidecar state files to .gitignore
 - Preview diffs and task details in split-pane view
 
+## Project Switcher
+
+Press `@` to switch between configured projects without restarting sidecar.
+
+1. Add projects to `~/.config/sidecar/config.json`:
+
+```json
+{
+  "projects": {
+    "list": [
+      {"name": "sidecar", "path": "~/code/sidecar"},
+      {"name": "td", "path": "~/code/td"},
+      {"name": "my-app", "path": "~/projects/my-app"}
+    ]
+  }
+}
+```
+
+2. Press `@` to open the project switcher modal
+3. Select with `j/k` or click, press `Enter` to switch
+
+All plugins reinitialize with the new project context. State (active plugin, cursor positions) is remembered per project.
+
 ## Keyboard Shortcuts
 
 | Key                 | Action                           |
 | ------------------- | -------------------------------- |
 | `q`, `ctrl+c`       | Quit                             |
+| `@`                 | Open project switcher            |
 | `tab` / `shift+tab` | Navigate plugins                 |
 | `1-9`               | Focus plugin by number           |
 | `j/k`, `↓/↑`        | Navigate items                   |

go.mod

@@ -13,7 +13,7 @@ require (
 	github.com/charmbracelet/lipgloss v1.1.1-0.20250404203927-76690c660834
 	github.com/charmbracelet/x/ansi v0.11.3
 	github.com/fsnotify/fsnotify v1.9.0
-	github.com/marcus/td v0.16.0
+	github.com/marcus/td v0.17.0
 	github.com/mattn/go-runewidth v0.0.19
 	github.com/mattn/go-sqlite3 v1.14.32
 	modernc.org/sqlite v1.41.0

go.sum

@@ -83,8 +83,8 @@ github.com/lucasb-eyer/go-colorful v1.3.0 h1:2/yBRLdWBZKrf7gB40FoiKfAWYQ0lqNcbuQ
 github.com/lucasb-eyer/go-colorful v1.3.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
 github.com/makeworld-the-better-one/dither/v2 v2.4.0 h1:Az/dYXiTcwcRSe59Hzw4RI1rSnAZns+1msaCXetrMFE=
 github.com/makeworld-the-better-one/dither/v2 v2.4.0/go.mod h1:VBtN8DXO7SNtyGmLiGA7IsFeKrBkQPze1/iAeM95arc=
-github.com/marcus/td v0.16.0 h1:+KevEJBNesDoYDt77k+bGEvEoPKMlx9aTgmCSA5dkyI=
-github.com/marcus/td v0.16.0/go.mod h1:MhMx3ztzXMnzeF69+KiL8+VxAJW43hwB86RrSvL4WyA=
+github.com/marcus/td v0.17.0 h1:9tCrW2lvjVkS0AAEGE8vr8AumXYdWkV2wtHXbGBLYEQ=
+github.com/marcus/td v0.17.0/go.mod h1:MhMx3ztzXMnzeF69+KiL8+VxAJW43hwB86RrSvL4WyA=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/mattn/go-localereader v0.0.1 h1:ygSAOl7ZXTx4RdPYinUpg6W99U8jWvWi9Ye2JC/oIi4=