kernel_patch_verify: Clean up AI review output in report

The AI review section previously included verbose worktree creation
output ("Updating files...", "Processing SHA...", directory paths) and
full Claude analysis stdout, resulting in 200+ lines per patch even when
no issues were found.

This commit improves the output format by:
- Removing stderr redirect from review_one.sh call - worktree creation
  progress and debugging output now goes to terminal only (visible during
  execution but not in the final report)
- Extracting review-inline.txt and review.md files before worktree cleanup
- Adding clear separators between commit reviews
- Including metadata summary (issue count, severity, AI-authorship score)
  when problems are found

Results:
- Clean patches: One line summary (e.g., "abc123: No issues found")
- Patches with issues: Metadata header + actionable comments (review-inline.txt)
  + detailed analysis (review.md)
- 98.5% reduction in report size for clean patches (8 lines vs 550 lines)

Users still see all progress information during execution, but the final
report only contains actionable results, making it much easier to identify
which commits need attention.

Assisted-by: Claude Sonnet 4.5 <noreply@anthropic.com>
Signed-off-by: Nishanth Menon <nm@ti.com>

Author: nmenon

kernel_patch_verify

@@ -487,13 +487,61 @@ series_ai_review() {
 			local subject=$(git -C "$KDIR" log -1 --format="%s" "$commit_sha")
 			echo "[$patch_num/$PATCHCOUNT] Reviewing $short_sha: $subject" 1>&2
 
-			( "$REVIEW_ONE_SH" --linux "$KDIR" --range "$range" "$commit_sha" || echo "AI review failed for $short_sha" ) | tee -a $LOG_DIR/ai-review.log
+			( "$REVIEW_ONE_SH" --linux "$KDIR" --range "$range" "$commit_sha" || echo "AI review failed for $short_sha" 1>&2 )
 
-			# Clean up the worktree created by review_one.sh
+			# Extract review files before cleanup
 			local worktree_dir="$KDIR.$commit_sha"
 			if [ ! -d "$worktree_dir" ]; then
 				worktree_dir="/tmp/linux.$commit_sha"
 			fi
+
+			# Add separator between commits in the log
+			if [ $patch_num -gt 1 ]; then
+				echo "" >> "$LOG_DIR/ai-review.log"
+				echo "========================================" >> "$LOG_DIR/ai-review.log"
+				echo "" >> "$LOG_DIR/ai-review.log"
+			fi
+
+			if [ -f "$worktree_dir/review-inline.txt" ]; then
+				# Extract metadata for summary
+				local issues_found="unknown"
+				local guide_flagged="unknown"
+				local severity="unknown"
+				local severity_explain=""
+				local ai_authorship="unknown"
+
+				if [ -f "$worktree_dir/review-metadata.json" ]; then
+					issues_found=$(grep -o '"issues-found": *[0-9]*' "$worktree_dir/review-metadata.json" | grep -o '[0-9]*')
+					guide_flagged=$(grep -o '"guide-flagged-issues": *[0-9]*' "$worktree_dir/review-metadata.json" | grep -o '[0-9]*')
+					severity=$(grep -o '"issue-severity-score": *"[^"]*"' "$worktree_dir/review-metadata.json" | cut -d'"' -f4)
+					severity_explain=$(grep -o '"issue-severity-explanation": *"[^"]*"' "$worktree_dir/review-metadata.json" | cut -d'"' -f4)
+					ai_authorship=$(grep -o '"AI-authorship-score": *"[^"]*"' "$worktree_dir/review-metadata.json" | cut -d'"' -f4)
+				fi
+
+				{
+					echo "========================================"
+					echo "Commit: $short_sha - $subject"
+					echo "Issues Found: $issues_found (guide-flagged: $guide_flagged)"
+					echo "Severity: $severity - $severity_explain"
+					echo "AI-authorship: $ai_authorship"
+					echo "========================================"
+					echo ""
+
+					echo "--- Review Comments ---"
+					cat "$worktree_dir/review-inline.txt"
+					echo ""
+
+					if [ -f "$worktree_dir/review.md" ]; then
+						echo "--- Analysis Details ---"
+						cat "$worktree_dir/review.md"
+						echo ""
+					fi
+				} >> "$LOG_DIR/ai-review.log"
+			else
+				echo "$short_sha: No issues found" >> "$LOG_DIR/ai-review.log"
+			fi
+
+			# Clean up the worktree created by review_one.sh
 			if [ -d "$worktree_dir" ]; then
 				echo "Cleaning up worktree: $worktree_dir" 1>&2
 				( cd "$KDIR" && git worktree remove --force "$worktree_dir" 2>&1 ) 1>&2