Emit a ### Changed Files Markdown table (| File | +/− | Type | rows plus
total added/removed) ahead of the raw diff in both committed and
uncommitted review prompts, parsed from the diff via the shared
parseDiff engine. Add an ### Excluded Files (n) section listing filtered
noise (path, +/− counts, reason), and replace byte-truncation of oversized
diffs with a file-list + read instruction when the cleaned diff exceeds
50KB or touches more than 20 files.
Also: distinguish diff-computation failure from genuinely no changes in the
review loop (tri-state result, never treats a broken base ref as a clean
verified task), map critical→blocker in finding severity parsing, inject a
per-review custom focus/instructions section from config, and make the
noise-filter ignore rules project-configurable via review.extraIgnorePatterns
and review.ignorePaths. Add same-model retry before cycling to the next
model in task/follow-up/fix sessions.
