Review tab overhaul: in-app PR review (sync, comments, threads) + diff/editor tab improvements

package.json

@@ -165,6 +165,8 @@
     "react-dom": "^19.2.5",
     "react-markdown": "^10.1.0",
     "rehype-highlight": "^7.0.2",
+    "rehype-raw": "^7.0.0",
+    "rehype-sanitize": "^6.0.0",
     "remark-gfm": "^4.0.1",
     "ssh-config": "^5.1.0",
     "ws": "^8.20.0"

src/main/build-initial-state.ts

@@ -80,6 +80,10 @@ export function buildInitialAppState(
           : 'system',
       themeLight: config.themeLight || DEFAULT_LIGHT_THEME,
       themeDark: config.themeDark || DEFAULT_DARK_THEME,
+      reviewDiffMode:
+        config.reviewDiffMode === 'light' || config.reviewDiffMode === 'dark'
+          ? config.reviewDiffMode
+          : 'match',
       hotkeys: config.hotkeys || null,
       defaultAgent: config.defaultAgent || 'claude',
       claudeCommand: config.claudeCommand || DEFAULT_CLAUDE_COMMAND,