v0.3.0: Fix sync exclusions, add editor zoom, cached PDF loadingv0.3.0

- Exclude CLAUDE.md from sync (move to .claude/ dotfile dir, clean up root copy)
- Add Ctrl+wheel font zoom for editor (capture phase, disable Electron built-in zoom)
- Load cached PDF on project connect (avoid recompile to see last PDF)
- Add synctex debug logging for PDF↔source navigation troubleshooting
- Fix .claude/ dir creation order (mkdir before write)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

3 files changed, 31 insertions, 4 deletions

diff --git a/src/renderer/src/components/Editor.tsx b/src/renderer/src/components/Editor.tsx
index 4edb945..8319e93 100644
--- a/src/renderer/src/components/Editor.tsx
+++ b/src/renderer/src/components/Editor.tsx
@@ -88,6 +88,7 @@ export default function Editor() {
   const docSyncRef = useRef<OverleafDocSync | null>(null)
 
   const cursorThrottleRef = useRef<ReturnType<typeof setTimeout> | null>(null)
+  const [editorFontSize, setEditorFontSize] = useState(13.5)
 
   // Add comment state
   const [newComment, setNewComment] = useState<{ from: number; to: number; text: string } | null>(null)
@@ -358,6 +359,29 @@ export default function Editor() {
     viewRef.current.dispatch({ effects: highlightThreadEffect.of(hoveredThreadId) })
   }, [hoveredThreadId])
 
+  // Ctrl+wheel / pinch zoom on editor (capture phase to beat CodeMirror)
+  useEffect(() => {
+    const el = editorRef.current
+    if (!el) return
+    const handleWheel = (e: WheelEvent) => {
+      if (!(e.ctrlKey || e.metaKey)) return
+      e.preventDefault()
+      e.stopPropagation()
+      const delta = e.deltaY > 0 ? -1 : 1
+      setEditorFontSize((s) => Math.min(28, Math.max(8, +(s + delta * 0.5).toFixed(1))))
+    }
+    el.addEventListener('wheel', handleWheel, { passive: false, capture: true })
+    return () => el.removeEventListener('wheel', handleWheel, { capture: true })
+  }, [])
+
+  // Apply font size to editor
+  useEffect(() => {
+    if (!viewRef.current) return
+    const wrapper = viewRef.current.dom
+    wrapper.style.fontSize = `${editorFontSize}px`
+    viewRef.current.requestMeasure()
+  }, [editorFontSize])
+
   if (!activeTab) {
     return (
       <div className="editor-empty">
diff --git a/src/renderer/src/components/PdfViewer.tsx b/src/renderer/src/components/PdfViewer.tsx
index c5fe8c4..01896d7 100644
--- a/src/renderer/src/components/PdfViewer.tsx
+++ b/src/renderer/src/components/PdfViewer.tsx
@@ -214,9 +214,9 @@ export default function PdfViewer() {
 
   // SyncTeX: double-click PDF → jump to source
   const handlePdfDoubleClick = useCallback(async (e: MouseEvent) => {
-    if (!pdfPath) return
+    if (!pdfPath) { console.log('[synctex-ui] no pdfPath'); return }
     const canvas = (e.target as HTMLElement).closest('canvas.pdf-page') as HTMLCanvasElement | null
-    if (!canvas) return
+    if (!canvas) { console.log('[synctex-ui] no canvas target'); return }
 
     const container = containerRef.current
     if (!container) return
@@ -234,12 +234,14 @@ export default function PdfViewer() {
 
     // Convert to PDF points (72 DPI coordinate system, origin bottom-left)
     const vpInfo = pageViewportsRef.current.get(pageNum)
-    if (!vpInfo) return
+    if (!vpInfo) { console.log('[synctex-ui] no viewport info for page', pageNum); return }
     const pdfX = (clickX / rect.width) * vpInfo.width
     const pdfY = vpInfo.height - (clickY / rect.height) * vpInfo.height
 
+    console.log(`[synctex-ui] dblclick page=${pageNum} pdfX=${pdfX.toFixed(1)} pdfY=${pdfY.toFixed(1)} path=${pdfPath}`)
     const result = await window.api.synctexEdit(pdfPath, pageNum, pdfX, pdfY)
-    if (!result) return
+    if (!result) { console.log('[synctex-ui] synctex returned null'); return }
+    console.log(`[synctex-ui] result: file=${result.file} line=${result.line}`)
 
     // Navigate to source — synctex returns relative path (e.g. "latex/main.tex")
     const store = useAppStore.getState()
diff --git a/src/renderer/src/components/ProjectList.tsx b/src/renderer/src/components/ProjectList.tsx
index 58a6bb0..2fe23de 100644
--- a/src/renderer/src/components/ProjectList.tsx
+++ b/src/renderer/src/components/ProjectList.tsx
@@ -69,6 +69,7 @@ export default function ProjectList({ onOpenProject }: Props) {
       store.setOverleafProjectId(pid)
       store.setConnectionState('connected')
       if (result.syncDir) store.setSyncDir(result.syncDir)
+      if (result.cachedPdfPath) store.setPdfPath(result.cachedPdfPath)
       setStatusMessage('Connected')
       onOpenProject(pid)
     } else {