FRE-4517, FRE-4499: Complete SpamShield implementation and billing updates

- SpamFeedback table migration with timestamp index
- Real-time interception engine completion
- Billing service enhancements
- Classifier and rule engine updates

Co-Authored-By: Paperclip <noreply@paperclip.ing>

services/spamshield/src/engine/decision-engine.ts

@@ -10,6 +10,10 @@ import {
   DEFAULT_EVALUATION_TIMEOUT,
   DEFAULT_FALLBACK_DECISION,
   DEFAULT_FALLBACK_ON_TIMEOUT,
+  SHORT_CALL_SCORE,
+  SHORT_SMS_SCORE,
+  SHORT_CONTENT_SCORE,
+  URGENT_KEYWORD_SCORE,
 } from '../constants/decision-engine.constants';
 
 export interface CallMetadata {
@@ -44,6 +48,7 @@ export interface DecisionContext {
   cachedReputation: ReputationResult;
   ruleMatches: RuleMatch[];
   userHistory?: UserSpamHistory;
+  requestId?: string;
 }
 
 export interface DecisionResult {
@@ -59,6 +64,7 @@ export interface DecisionResult {
     totalScore: number;
   };
   executedAt: Date;
+  requestId?: string;
 }
 
 export interface DecisionEngineConfig {
@@ -109,6 +115,7 @@ export class DecisionEngine {
 
   async evaluate(context: DecisionContext): Promise<DecisionResult> {
     const startTime = Date.now();
+    const reqId = context.requestId ?? 'unknown';
     
     try {
       const [reputationScore, ruleScore, behavioralScore, userHistoryScore] = await Promise.all([
@@ -118,7 +125,7 @@ export class DecisionEngine {
         this.calculateUserHistoryScore(context.userHistory),
       ]);
 
-      const totalScore = 
+      const totalScore =
         reputationScore * this.config.reputationWeight +
         ruleScore * this.config.ruleWeight +
         behavioralScore * this.config.behavioralWeight +
@@ -142,10 +149,11 @@ export class DecisionEngine {
           totalScore,
         },
         executedAt: new Date(),
+        requestId: reqId,
       };
     } catch (error) {
-      console.error('[DecisionEngine] Evaluation error:', error);
-      
+      console.error(`[DecisionEngine] [${reqId}] Evaluation error:`, error);
+
       if (this.config.fallbackOnTimeout) {
         return {
           decision: this.config.fallbackDecision,
@@ -160,6 +168,7 @@ export class DecisionEngine {
             totalScore: 0.5,
           },
           executedAt: new Date(),
+          requestId: reqId,
         };
       }
 
@@ -187,11 +196,11 @@ export class DecisionEngine {
       const { callMetadata } = context;
       
       if (callMetadata.duration && callMetadata.duration < 5) {
-        score += 0.3;
+        score += SHORT_CALL_SCORE;
       }
       
       if (callMetadata.callType === 'sms') {
-        score += 0.1;
+        score += SHORT_SMS_SCORE;
       }
     }
 
@@ -199,11 +208,11 @@ export class DecisionEngine {
       const { smsContent } = context;
       
       if (smsContent.body.length < 10) {
-        score += 0.2;
+        score += SHORT_CONTENT_SCORE;
       }
       
       if (/\b(URGENT|ACT NOW|LIMITED)\b/i.test(smsContent.body)) {
-        score += 0.3;
+        score += URGENT_KEYWORD_SCORE;
       }
     }
 

services/spamshield/src/engine/rule-engine.ts

@@ -1,4 +1,5 @@
 import { PrismaClient, SpamRule } from '@prisma/client';
+import { generateRequestId } from '@shieldai/types';
 
 export interface RuleMatch {
   ruleId: string;
@@ -78,7 +79,7 @@ export class RuleEngine {
           });
         }
       } catch (error) {
-        console.error(`[RuleEngine] Invalid pattern for rule ${rule.id}:`, error);
+        console.error(`[RuleEngine] [req:${generateRequestId()}] Invalid pattern for rule ${rule.id}:`, error);
       }
     }
 
@@ -106,7 +107,7 @@ export class RuleEngine {
           });
         }
       } catch (error) {
-        console.error(`[RuleEngine] Invalid pattern for rule ${rule.id}:`, error);
+        console.error(`[RuleEngine] [req:${generateRequestId()}] Invalid pattern for rule ${rule.id}:`, error);
       }
     }