fix(integrity): stop counting dead-link findings as review-queue entries (#3750) (#3751)

The dead-link branch in cmdAuto called logSkip() (writing to
integrity.log.jsonl) but incremented bucketReview, the same counter fed by
the bare-tweet path's appendReview() calls (which write to
integrity-review.md). The printed "Review queue" summary line therefore
included findings that were never written to the review file, so
`gbrain integrity review` silently disagreed with `integrity auto`'s own
summary.

Give dead-link findings their own counter (bucketDeadLink) and print it as
a separate line. No change to bare-tweet bucketing or CLI surface.

src/commands/integrity.ts

@@ -449,6 +449,7 @@ async function cmdAuto(args: string[]): Promise<void> {
   let bucketReview = 0;
   let bucketSkip = 0;
   let bucketErr = 0;
+  let bucketDeadLink = 0;
   let pagesProcessed = 0;
 
   const { createProgress } = await import('../core/progress.ts');
@@ -549,7 +550,13 @@ async function cmdAuto(args: string[]): Promise<void> {
                 hit: { slug, line: hit.line, rawLine: hit.url, phrase: 'dead-link' },
                 reason: `dead link: ${result.value.reason ?? 'unknown'}`,
               });
-              bucketReview++;
+              // Dead links have no confidence score and are never written to
+              // the review file (appendReview() is only called from the
+              // bare-tweet path above) — they land in the skip log via
+              // logSkip() a few lines up. Count them separately so the
+              // printed "Review queue" total only ever reflects what's
+              // actually in ~/.gbrain/integrity-review.md.
+              bucketDeadLink++;
             }
           } catch {
             /* transient; don't fail the run */
@@ -568,6 +575,7 @@ async function cmdAuto(args: string[]): Promise<void> {
     console.log(`Review queue (≥${reviewLower} <${confidenceThreshold}): ${bucketReview}`);
     console.log(`Skipped (<${reviewLower}): ${bucketSkip}`);
     if (bucketErr > 0) console.log(`Resolver errors: ${bucketErr}`);
+    if (bucketDeadLink > 0) console.log(`Dead links surfaced (see skipped log): ${bucketDeadLink}`);
     console.log(`\nReview queue: ${getReviewFile()}`);
     console.log(`Skipped log:  ${getLogFile()}`);
     console.log(`Progress:     ${getProgressFile()}`);