engine: VON_VERSION 1.3, von-1.3 alias, /v1/models row; response model stamp von-1.3.0

Author: wfzyx

src/von/engine.py

@@ -28,12 +28,12 @@
 # never by architecture name -- so callers never have to know or care how the
 # current model is built. A model that changes enough to break parity gets the
 # next version number.
-VON_VERSION = "1.2"
+VON_VERSION = "1.3"
 
 # Aliases that resolve to the current model.
 # "von-1.1" stays accepted: 1.2 is the same model family retrained, and callers
 # that pinned the previous version should keep working rather than break on upgrade.
-VON_CURRENT_ALIASES = ("von-1.2", "1.2", "von-1.1", "1.1", "von", "default", "latest", "von-latest")
+VON_CURRENT_ALIASES = ("von-1.3", "1.3", "von-1.2", "1.2", "von-1.1", "1.1", "von", "default", "latest", "von-latest")
 SUPPORTED_BACKENDS = frozenset(VON_CURRENT_ALIASES)
 
 # Von ships exactly one model. Superseded releases and third-party encoders used
@@ -48,7 +48,7 @@ class VonEngine:
     _instance: Optional["VonEngine"] = None
     _lock: threading.Lock = threading.Lock()
 
-    def __init__(self, backend_name: str = "von-1.2", device: Optional[str] = None):
+    def __init__(self, backend_name: str = "von-1.3", device: Optional[str] = None):
         self.backend_name = backend_name.lower().strip()
         self.device = device or os.environ.get("VON_DEVICE")
         if self.backend_name in VON_CURRENT_ALIASES:

src/von/server.py

@@ -56,7 +56,7 @@ def health_check():
         "status": "ok",
         "service": "von-decision-server",
         "version": __version__,
-        "engine": "von-1.2",
+        "engine": "von-1.3",
         "homage": "John von Neumann & Ludwig von Mises",
     }
 
@@ -65,6 +65,7 @@ def health_check():
 def list_models():
     model_entries = [
         {"name": "von-latest", "description": "Current Von System One decision model", "release_date": "2026-09-23"},
+        {"name": "von-1.3.0", "description": "Von 1.3 (von-1.2 weights + chain-of-options, real usage tokens)", "release_date": "2026-09-28"},
         {"name": "von-1.2.0", "description": "Von 1.2 stable release (order-invariant option scoring)", "release_date": "2026-09-23"},
         {"name": "von-1.1.0", "description": "Von 1.1 alias (resolves to current model)", "release_date": "2026-09-21"},
         {"name": "jev-latest", "description": "TypeSafe Jev compatibility alias", "release_date": "2026-09-21"},