feat(gtm): v2.5 - Hard Fact Extraction & UI

- Backend: Implemented secondary extraction phase for structured specs (JSON schema).

- Backend: Added strict normalization rules (min, cm, kg).

- Frontend: Added 'Phase1Data' interface update for specs.

- Frontend: Implemented new UI component for 'Technical Specifications' in Phase 1.

- Frontend: Updated header and sidebar to display 'v2.5' build marker.

- Docs: Updated architectural documentation.

gtm-architect/types.ts

@@ -28,6 +28,47 @@ export interface Phase1Data {
     relatedProduct?: string;
   };
   rawAnalysis: string;
+  specs?: {
+    metadata: {
+      product_id: string;
+      brand: string;
+      model_name: string;
+      category: string;
+      manufacturer_url: string;
+    };
+    core_specs: {
+      battery_runtime_min: number | null;
+      charge_time_min: number | null;
+      weight_kg: number | null;
+      dimensions_cm: { l: number | null; w: number | null; h: number | null };
+      max_slope_deg: number | null;
+      ip_rating: string | null;
+      climb_height_cm: number | null;
+      navigation_type: string | null;
+      connectivity: string[];
+    };
+    layers: {
+      cleaning?: {
+        fresh_water_l: number | null;
+        dirty_water_l: number | null;
+        area_performance_sqm_h: number | null;
+        mop_pressure_kg: number | null;
+      };
+      service?: {
+        max_payload_kg: number | null;
+        number_of_trays: number | null;
+        display_size_inch: number | null;
+        ads_capable: boolean | null;
+      };
+      security?: {
+        camera_types: string[];
+        night_vision: boolean | null;
+        gas_detection: string[];
+        at_interface: boolean | null;
+      };
+    };
+    extended_features: { feature: string; value: string; unit: string }[];
+  };
 }
 
 export interface Phase2Data {