Add route simulation quality summary

docs/prompt-architecture-improvement-plan.md

@@ -39,6 +39,10 @@ The map audit currently sees:
 - Route simulation now has an opt-in multi-seed sweep, and the smoke suite runs
   a three-seed sweep so representative route/noise checks are not proven by one
   lucky seed only.
+- Route simulation now emits a `quality` summary that groups route health by
+  target, action family, and position family, separates route issues from
+  coverage/seed-check issues, buckets issue types, and reports weakest cases so
+  future prompt-logic passes can target the worst path first.
 - Map audit now fails when a registered ComfyUI node display name is missing
   from the route map or README, so utility nodes cannot silently drift out of
   user-facing documentation.

docs/prompt-pool-routing-map.md

@@ -1028,6 +1028,13 @@ issues for:
 - multi-seed route sweeps that repeat the same route/noise/seed checks across
   spaced seeds to catch random-pool drift hidden by a single clean seed.
 
+The report also includes a `quality` section. This is the high-level progress
+view for path cleanup: it groups route cases by target, action family, and
+position family; counts route issues separately from coverage/seed-check
+issues; buckets issue types such as label leaks, softcore noise, trace
+mismatches, trigger drift, or reroll drift; and lists the weakest cases first
+when a sweep finds failures.
+
 Use `--json --include-prompts` when you need the exact raw and formatted text
 for debugging a route. Use `--sweep-count 5 --seed-step 101` when changing pool
 selection, route terms, or formatter noise rules and you need more than one