chore(release): clear release/v3.8.51 base-red gates — docs count, stryker list, lockfile host, stale suppressions, 7 lint regressions (#11502)

Validated in a combined 4-PR batch worktree off release/v3.8.51 tip.
- Every fix individually confirmed against the pristine tip, no runtime behavior change
- typecheck:core, file-size, changelog-integrity, complexity, cognitive-complexity, check:cycles — all OK
- Full-repo lint: 503 → 228 problems, confirming this PR's diagnosis of the exit-2 stale-suppressions + orphaned-code causes; the remaining 228 are pre-existing dashboard react-hooks/* findings this PR never claimed to touch
- node --test tests/unit/combo-routing-engine.test.ts, providers-constants-split.test.ts, and the providerLimits/videoBridge importers — all pass as part of the batch's 246/246 node:test run

Thanks for the meticulous base-red triage — this directly explains and fixes the largest lint-drift finding from the prior merge-batch session.

src/app/api/v1/models/catalog.ts

@@ -1610,10 +1610,9 @@ async function buildUnifiedModelsResponseCore(
           ) {
             continue;
           }
-          const visionFields =
-            !modelType || modelType === "chat"
-              ? getCustomVisionCapabilityFields(model, aliasId, modelId)
-              : null;
+          const visionFields = !modelType
+            ? getCustomVisionCapabilityFields(model, aliasId, modelId)
+            : null;
 
           if (includeAlias) {
             models.push({
@@ -1644,10 +1643,9 @@ async function buildUnifiedModelsResponseCore(
           if (includeCanonical && canonicalProviderId !== alias && !prefix && !isNoAuthProvider) {
             const providerPrefixedId = `${canonicalProviderId}/${modelId}`;
             if (models.some((m) => m.id === providerPrefixedId)) continue;
-            const providerVisionFields =
-              !modelType || modelType === "chat"
-                ? getCustomVisionCapabilityFields(model, providerPrefixedId, modelId)
-                : null;
+            const providerVisionFields = !modelType
+              ? getCustomVisionCapabilityFields(model, providerPrefixedId, modelId)
+              : null;
             models.push({
               id: providerPrefixedId,
               object: "model",