feat: productivity suite — task loop, workflow, theming, docs & more (#197)

## Summary

A large productivity-focused feature branch delivering a suite of improvements across automation, project management, theming, performance, and documentation.

### Features

- **Guided Project Workflow** (#189) — Four-phase workflow panel (Discuss → Plan → Execute → Verify) to keep projects structured from idea to completion
- **Automated Task Loop** (#179) — Per-task conversation orchestration with wave-based parallel execution, blocked-task detection, and concurrency control
- **Wave-Based Parallel Execution** (#191) — Tasks run in dependency-aware waves with configurable concurrency; independent tasks execute in parallel
- **Auto-Commit After Task Completion** (#192) — Task Loop optionally commits after each completed task so progress is never lost
- **PRD Creator** (#180) — AI-assisted PRD and task list panel that outputs `hikari-tasks.json` for the Task Loop to consume
- **Project Context Panel** (#188) — Persistent `PROJECT.md`, `REQUIREMENTS.md`, `ROADMAP.md`, and `STATE.md` files injected into Claude's context automatically
- **Codebase Mapper** (#190) — Generates a `CODEBASE.md` architectural summary so Claude always understands the project structure
- **Community Preset Themes** (#181) — Six built-in community themes: Dracula, Catppuccin Mocha, Nord, Solarized Dark, Gruvbox Dark, and Rosé Pine
- **In-App Changelog Panel** (#193) — Fetches release notes from GitHub at runtime and displays them inside the app
- **Full Embedded Documentation** (#196) — Replaced the single-page help modal with a 12-page paginated docs browser featuring a sidebar TOC, prev/next navigation, keyboard navigation (arrow keys, `?` shortcut), and comprehensive coverage of every feature

### Performance & Fixes

- **Lazy Loading & Virtualisation** (#194) — Virtual windowing for conversation history, markdown memoisation, and debounced search for smooth rendering of large sessions
- **Ctrl+C Copy Fix** (#195) — `Ctrl+C` now copies selected text as expected; interrupt-Claude behaviour only fires when no text is selected

### UX

- Back-to-workflow button in PRD Creator and Task Loop panels for easy navigation
- Navigation icon cluster replaced with a single clean dropdown menu

## Closes

Closes #179
Closes #180
Closes #181
Closes #188
Closes #189
Closes #190
Closes #191
Closes #192
Closes #193
Closes #194
Closes #195
Closes #196

---

✨ This PR was created with help from Hikari~ 🌸

Reviewed-on: #197
Co-authored-by: Hikari <hikari@nhcarrigan.com>
Co-committed-by: Hikari <hikari@nhcarrigan.com>

src-tauri/src/config.rs

@@ -158,6 +158,16 @@ pub struct HikariConfig {
 
     #[serde(default)]
     pub custom_ui_font_family: Option<String>,
+
+    // Task Loop auto-commit settings
+    #[serde(default)]
+    pub task_loop_auto_commit: bool,
+
+    #[serde(default = "default_task_loop_commit_prefix")]
+    pub task_loop_commit_prefix: String,
+
+    #[serde(default)]
+    pub task_loop_include_summary: bool,
 }
 
 impl Default for HikariConfig {
@@ -201,6 +211,9 @@ impl Default for HikariConfig {
             custom_font_family: None,
             custom_ui_font_path: None,
             custom_ui_font_family: None,
+            task_loop_auto_commit: false,
+            task_loop_commit_prefix: "feat".to_string(),
+            task_loop_include_summary: false,
         }
     }
 }
@@ -241,6 +254,10 @@ fn default_background_image_opacity() -> f32 {
     0.3
 }
 
+fn default_task_loop_commit_prefix() -> String {
+    "feat".to_string()
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize, Default, PartialEq)]
 #[serde(rename_all = "lowercase")]
 pub enum BudgetAction {
@@ -258,6 +275,18 @@ pub enum Theme {
     #[serde(rename = "high-contrast")]
     HighContrast,
     Custom,
+    Dracula,
+    Catppuccin,
+    Nord,
+    Solarized,
+    #[serde(rename = "solarized-light")]
+    SolarizedLight,
+    #[serde(rename = "catppuccin-latte")]
+    CatppuccinLatte,
+    #[serde(rename = "gruvbox-light")]
+    GruvboxLight,
+    #[serde(rename = "rose-pine-dawn")]
+    RosePineDawn,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize, Default, PartialEq)]
@@ -320,6 +349,9 @@ mod tests {
         assert!(config.custom_font_family.is_none());
         assert!(config.custom_ui_font_path.is_none());
         assert!(config.custom_ui_font_family.is_none());
+        assert!(!config.task_loop_auto_commit);
+        assert_eq!(config.task_loop_commit_prefix, "feat");
+        assert!(!config.task_loop_include_summary);
     }
 
     #[test]
@@ -363,6 +395,9 @@ mod tests {
             custom_font_family: Some("MyFont".to_string()),
             custom_ui_font_path: None,
             custom_ui_font_family: None,
+            task_loop_auto_commit: true,
+            task_loop_commit_prefix: "fix".to_string(),
+            task_loop_include_summary: true,
         };
 
         let json = serde_json::to_string(&config).unwrap();
@@ -377,22 +412,84 @@ mod tests {
             deserialized.greeting_custom_prompt,
             Some("Hello!".to_string())
         );
+        assert!(deserialized.task_loop_auto_commit);
+        assert_eq!(deserialized.task_loop_commit_prefix, "fix");
+        assert!(deserialized.task_loop_include_summary);
     }
 
     #[test]
     fn test_theme_serialization() {
-        let dark = Theme::Dark;
-        let light = Theme::Light;
-        let high_contrast = Theme::HighContrast;
-
-        assert_eq!(serde_json::to_string(&dark).unwrap(), "\"dark\"");
-        assert_eq!(serde_json::to_string(&light).unwrap(), "\"light\"");
+        assert_eq!(serde_json::to_string(&Theme::Dark).unwrap(), "\"dark\"");
+        assert_eq!(serde_json::to_string(&Theme::Light).unwrap(), "\"light\"");
         assert_eq!(
-            serde_json::to_string(&high_contrast).unwrap(),
+            serde_json::to_string(&Theme::HighContrast).unwrap(),
             "\"high-contrast\""
         );
+        assert_eq!(serde_json::to_string(&Theme::Custom).unwrap(), "\"custom\"");
+        assert_eq!(
+            serde_json::to_string(&Theme::Dracula).unwrap(),
+            "\"dracula\""
+        );
+        assert_eq!(
+            serde_json::to_string(&Theme::Catppuccin).unwrap(),
+            "\"catppuccin\""
+        );
+        assert_eq!(serde_json::to_string(&Theme::Nord).unwrap(), "\"nord\"");
+        assert_eq!(
+            serde_json::to_string(&Theme::Solarized).unwrap(),
+            "\"solarized\""
+        );
+        assert_eq!(
+            serde_json::to_string(&Theme::SolarizedLight).unwrap(),
+            "\"solarized-light\""
+        );
+        assert_eq!(
+            serde_json::to_string(&Theme::CatppuccinLatte).unwrap(),
+            "\"catppuccin-latte\""
+        );
+        assert_eq!(
+            serde_json::to_string(&Theme::GruvboxLight).unwrap(),
+            "\"gruvbox-light\""
+        );
+        assert_eq!(
+            serde_json::to_string(&Theme::RosePineDawn).unwrap(),
+            "\"rose-pine-dawn\""
+        );
+    }
 
-        let custom = Theme::Custom;
-        assert_eq!(serde_json::to_string(&custom).unwrap(), "\"custom\"");
+    #[test]
+    fn test_theme_deserialization() {
+        assert_eq!(
+            serde_json::from_str::<Theme>("\"dracula\"").unwrap(),
+            Theme::Dracula
+        );
+        assert_eq!(
+            serde_json::from_str::<Theme>("\"catppuccin\"").unwrap(),
+            Theme::Catppuccin
+        );
+        assert_eq!(
+            serde_json::from_str::<Theme>("\"nord\"").unwrap(),
+            Theme::Nord
+        );
+        assert_eq!(
+            serde_json::from_str::<Theme>("\"solarized\"").unwrap(),
+            Theme::Solarized
+        );
+        assert_eq!(
+            serde_json::from_str::<Theme>("\"solarized-light\"").unwrap(),
+            Theme::SolarizedLight
+        );
+        assert_eq!(
+            serde_json::from_str::<Theme>("\"catppuccin-latte\"").unwrap(),
+            Theme::CatppuccinLatte
+        );
+        assert_eq!(
+            serde_json::from_str::<Theme>("\"gruvbox-light\"").unwrap(),
+            Theme::GruvboxLight
+        );
+        assert_eq!(
+            serde_json::from_str::<Theme>("\"rose-pine-dawn\"").unwrap(),
+            Theme::RosePineDawn
+        );
     }
 }