Sprint C: React Context, StagingArea refactor, CommitGraph virtualization#23
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…virtualization C1: Replace 160-prop drilling with AppStateContext - Add AppStateContext.tsx with AppContextValue type combining AppSidebarProps + extra fields - Rewrite App.tsx to build single ctxValue and wrap in AppStateContext.Provider - Convert AppSidebar and MainView to zero-prop components using useAppContext() C2: Split StagingArea.tsx into focused hooks - Extract useFileOperations (status, staging, discard, stash, diff) - Extract useCommitForm (commit message, amend, signoff, handleCommit) - Extract useAiCommit (AI auto-commit state, job events, cancel) - Extract useConflictResolver (conflict editor, navigation, resolution) - StagingArea.tsx reduced from ~1280 to ~260 lines C3: CommitGraph virtualization - Track scroll position and container height via passive scroll listener - Compute visible node window with 8-row overscan - Render only visible commit rows with top/bottom spacer divs - Filter SVG edges and nodes to visible range only - Fixes performance with 1000+ commit repositories Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
AppSidebarandMainView. AddedAppStateContext.tsxwith a singleAppContextValuetype.App.tsxnow builds one context object and bothAppSidebarandMainViewbecome zero-prop components that calluseAppContext().useFileOperations,useCommitForm,useAiCommit,useConflictResolver).StagingArea.tsxis now ~260 lines of thin orchestration.Test plan
npx tsc --noEmitpasses with zero errors🤖 Generated with Claude Code