chore: gitignore PPLAN-*.md for plan-type consistency + spawn builder template registry id refresh

.gitignore

@@ -43,7 +43,7 @@ FPLAN-*.md
 DPLAN-*.md
 RPLAN-*.md
 TDPLAN-*.md
-
+PPLAN-*.md
 # Branch local directories
 logs/
 artifacts/

src/aipass/spawn/templates/builder/.spawn/.template_registry.json

@@ -149,7 +149,7 @@
       "content_hash": "a4cf0a8e3b4f",
       "has_branch_placeholder": false
     },
-    "f015": {
+    "f018": {
       "path": "apps/modules/__init__.py",
       "name": "__init__.py",
       "content_hash": "e3b0c44298fc",
@@ -263,7 +263,7 @@
       "content_hash": "28e9ae373563",
       "has_branch_placeholder": false
     },
-    "f018": {
+    "f015": {
       "path": "apps/plugins/__init__.py",
       "name": "__init__.py",
       "content_hash": "e3b0c44298fc",