docs: split current status from verification ledger (#167)

Keep the main status snapshot concise and archive durable verification evidence in an indexed secondary document.

scripts/check-project-state.ps1

@@ -29,7 +29,7 @@ if ($memoryLines -gt 200 -or $memoryBytes -gt 16000) {
     throw "docs/project-memory.md exceeds its budget: $memoryLines lines, $memoryBytes bytes"
 }
 if ($statusLines -gt 120 -or $statusBytes -gt 12000) {
-    throw "docs/status.md exceeds its budget: $statusLines lines, $statusBytes bytes"
+    throw "docs/status.md exceeds its 120-line/12000-byte current-index budget: $statusLines lines, $statusBytes bytes. Remove completed history or move retained detail to its owning document; do not micro-compress prose."
 }
 
 git diff --check

scripts/check-project-state.sh

@@ -29,7 +29,7 @@ if [ "$memory_lines" -gt 200 ] || [ "$memory_bytes" -gt 16000 ]; then
 fi
 
 if [ "$status_lines" -gt 120 ] || [ "$status_bytes" -gt 12000 ]; then
-  echo "docs/status.md exceeds its budget: $status_lines lines, $status_bytes bytes" >&2
+  echo "docs/status.md exceeds its 120-line/12000-byte current-index budget: $status_lines lines, $status_bytes bytes. Remove completed history or move retained detail to its owning document; do not micro-compress prose." >&2
   exit 1
 fi
 

scripts/required-project-paths.txt

@@ -18,6 +18,7 @@ tsconfig.json
 docs/README.md
 docs/project-memory.md
 docs/status.md
+docs/verification-status.md
 docs/maintenance.md
 docs/需求理解.md
 docs/方案设计.md