feat: multi-tab simultaneous diffs for multi-file edits#37
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Replace the single-diff-with-queue architecture with multi-tab simultaneous diffs. Each file edit now opens its own tab, solving OpenCode's multi-file workflow where all before-hooks fire before any after-hooks. Key changes: - diff.lua: active_diffs table keyed by file path replaces single diff_tab - diff.lua: per-buffer inline state (buf_inline_data) replaces module-level vars - diff.lua: close_for_file(path) closes specific file's diff tab - diff.lua: neo-tree refresh deferred to after tab close (fixes stale tabpage crash) - diff.lua: delayed second refresh so new files appear in neo-tree after write - core-post-tool.sh: uses close_for_file(path) instead of is_open() + close_diff() - core-pre-tool.sh: per-PID temp files prevent collision between concurrent hooks - core-pre-tool.sh: neo-tree indicator/reveal moved to Lua side (mark_change_and_reveal) - apply-edit.lua: fix empty old_string handling for new file creation - Remove dead auto_close config option (no longer applicable with multi-tab) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
claude-diff-original-$$).neo_tree.refresh()to after tab close viavim.schedule(), preventingInvalid tabpage iderrors.old_stringnow correctly prependsnew_string(handles new file creation via OpenCode).Test plan