feat: add semantic filter type aliases

Add ProductFilters, CreativeFilters, and SignalFilters type aliases to resolve name collisions where multiple `Filters` classes exist in different request modules.

- ProductFilters: Filters for GetProductsRequest (6 fields for product discovery)
- CreativeFilters: Filters for ListCreativesRequest (17 fields for creative library queries)
- SignalFilters: Filters for GetSignalsRequest (4 fields for signal discovery)

These aliases follow the established pattern in aliases.py for resolving discriminated union name collisions. Upstream schemas now properly define Filter classes as nested objects with properties, so the generator creates proper Pydantic models.

Resolves feedback from downstream client regarding Filters type ambiguity.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: bokelley

Makefile

@@ -47,7 +47,7 @@ regenerate-schemas: ## Download latest schemas and regenerate models
 	@echo "Fixing schema references..."
 	$(PYTHON) scripts/fix_schema_refs.py
 	@echo "Generating Pydantic models..."
-	$(PYTHON) scripts/generate_models_simple.py
+	$(PYTHON) scripts/generate_types.py
 	@echo "✓ Schemas regenerated successfully"
 
 validate-generated: ## Validate generated code (syntax and imports)
@@ -99,7 +99,7 @@ check-schema-drift: ## Check if schemas are out of sync with upstream
 	@echo "Checking for schema drift..."
 	@$(PYTHON) scripts/sync_schemas.py
 	@$(PYTHON) scripts/fix_schema_refs.py
-	@$(PYTHON) scripts/generate_models_simple.py
+	@$(PYTHON) scripts/generate_types.py
 	@if git diff --exit-code src/adcp/types/generated.py schemas/cache/; then \
 		echo "✓ Schemas are up-to-date"; \
 	else \

schemas/cache/.hashes.json

@@ -12,7 +12,7 @@
     "deployments": {
       "description": "Target deployment(s) for activation. If the authenticated caller matches one of these deployment targets, activation keys will be included in the response.",
       "items": {
-        "$ref": "/schemas/v1/core/destination.json"
+        "$ref": "destination.json"
       },
       "minItems": 1,
       "type": "array"

schemas/cache/1.0.0/activate-signal-request.json

@@ -20,7 +20,7 @@
         "deployments": {
           "description": "Array of deployment results for each deployment target",
           "items": {
-            "$ref": "/schemas/v1/core/deployment.json"
+            "$ref": "deployment.json"
           },
           "type": "array"
         }
@@ -47,7 +47,7 @@
         "errors": {
           "description": "Array of errors explaining why activation failed (e.g., platform connectivity issues, signal definition problems, authentication failures)",
           "items": {
-            "$ref": "/schemas/v1/core/error.json"
+            "$ref": "error.json"
           },
           "minItems": 1,
           "type": "array"

schemas/cache/1.0.0/activate-signal-response.json

@@ -318,7 +318,7 @@
               "properties": {
                 "description": "Specific properties this agent is authorized for (alternative to property_ids/property_tags)",
                 "items": {
-                  "$ref": "/schemas/v1/core/property.json"
+                  "$ref": "property.json"
                 },
                 "minItems": 1,
                 "type": "array"
@@ -354,7 +354,7 @@
               "publisher_properties": {
                 "description": "Properties from other publisher domains this agent is authorized for. Each entry specifies a publisher domain and which of their properties this agent can sell",
                 "items": {
-                  "$ref": "/schemas/v1/core/publisher-property-selector.json"
+                  "$ref": "publisher-property-selector.json"
                 },
                 "minItems": 1,
                 "type": "array"
@@ -426,7 +426,7 @@
     "properties": {
       "description": "Array of all properties covered by this adagents.json file. Same structure as list_authorized_properties response.",
       "items": {
-        "$ref": "/schemas/v1/core/property.json"
+        "$ref": "property.json"
       },
       "minItems": 1,
       "type": "array"

schemas/cache/1.0.0/adagents.json

@@ -0,0 +1,11 @@
+{
+  "$id": "/schemas/v1/enums/adcp-domain.json",
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "description": "AdCP protocol domains for task categorization",
+  "enum": [
+    "media-buy",
+    "signals"
+  ],
+  "title": "AdCP Domain",
+  "type": "string"
+}

schemas/cache/1.0.0/adcp-domain.json

@@ -0,0 +1,11 @@
+{
+  "$id": "/schemas/v1/enums/auth-scheme.json",
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "description": "Authentication schemes for push notification endpoints",
+  "enum": [
+    "Bearer",
+    "HMAC-SHA256"
+  ],
+  "title": "Authentication Scheme",
+  "type": "string"
+}

schemas/cache/1.0.0/auth-scheme.json

@@ -0,0 +1,18 @@
+{
+  "$id": "/schemas/v1/enums/available-metric.json",
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "description": "Standard delivery and performance metrics available for reporting",
+  "enum": [
+    "impressions",
+    "spend",
+    "clicks",
+    "ctr",
+    "video_completions",
+    "completion_rate",
+    "conversions",
+    "viewability",
+    "engagement_rate"
+  ],
+  "title": "Available Metric",
+  "type": "string"
+}

schemas/cache/1.0.0/available-metric.json

@@ -125,7 +125,7 @@
             "type": "string"
           },
           "asset_type": {
-            "$ref": "/schemas/v1/enums/asset-content-type.json",
+            "$ref": "asset-content-type.json",
             "description": "Type of asset. Note: Brand manifests typically contain basic media assets (image, video, audio, text). Code assets (html, javascript, css) and ad markup (vast, daast) are usually not part of brand asset libraries."
           },
           "description": {

schemas/cache/1.0.0/brand-manifest.json

@@ -0,0 +1,12 @@
+{
+  "$id": "/schemas/v1/enums/co-branding-requirement.json",
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "description": "Co-branding policy for creatives (retailer/publisher brand inclusion)",
+  "enum": [
+    "required",
+    "optional",
+    "none"
+  ],
+  "title": "Co-Branding Requirement",
+  "type": "string"
+}