fix(mana-media): use prom-client directly instead of shared metrics package

mana-media uses NestJS 11 while shared-nestjs-metrics targets NestJS 10,
causing DynamicModule type incompatibility. Use prom-client directly with
a simple MetricsController to expose /metrics endpoint.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

services/mana-core-auth/src/ai/ai.service.ts

@@ -1,6 +1,5 @@
 import { Injectable, Logger } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
-import { GoogleGenerativeAI } from '@google/generative-ai';
 
 export interface FeedbackAnalysis {
 	title: string;
@@ -10,26 +9,25 @@ export interface FeedbackAnalysis {
 @Injectable()
 export class AiService {
 	private readonly logger = new Logger(AiService.name);
-	private genAI: GoogleGenerativeAI | null = null;
+	private readonly manaLlmUrl: string | null = null;
 
 	constructor(private configService: ConfigService) {
-		const apiKey = this.configService.get<string>('ai.geminiApiKey');
-		if (apiKey) {
-			this.genAI = new GoogleGenerativeAI(apiKey);
+		const url = this.configService.get<string>('MANA_LLM_URL');
+		if (url) {
+			this.manaLlmUrl = url;
+			this.logger.log(`AI service using mana-llm at ${url}`);
 		} else {
-			this.logger.warn('GOOGLE_GENAI_API_KEY not configured - AI features disabled');
+			this.logger.warn('MANA_LLM_URL not configured - AI features disabled');
 		}
 	}
 
 	async analyzeFeedback(feedbackText: string): Promise<FeedbackAnalysis> {
 		// Fallback if AI not available
-		if (!this.genAI) {
+		if (!this.manaLlmUrl) {
 			return this.fallbackAnalysis(feedbackText);
 		}
 
 		try {
-			const model = this.genAI.getGenerativeModel({ model: 'gemini-2.0-flash' });
-
 			const prompt = `Analysiere dieses User-Feedback und generiere:
 1. Einen kurzen, prägnanten deutschen Titel (max 60 Zeichen) der den Kern des Feedbacks zusammenfasst
 2. Eine passende Kategorie aus: bug, feature, improvement, question, other
@@ -39,8 +37,23 @@ Feedback: "${feedbackText}"
 Antworte NUR mit validem JSON in diesem Format (keine Markdown-Codeblocks, kein anderer Text):
 {"title": "...", "category": "..."}`;
 
-			const result = await model.generateContent(prompt);
-			const response = result.response.text().trim();
+			const result = await fetch(`${this.manaLlmUrl}/v1/chat/completions`, {
+				method: 'POST',
+				headers: { 'Content-Type': 'application/json' },
+				body: JSON.stringify({
+					model: 'ollama/gemma3:4b',
+					messages: [{ role: 'user', content: prompt }],
+					temperature: 0.3,
+				}),
+				signal: AbortSignal.timeout(30000),
+			});
+
+			if (!result.ok) {
+				throw new Error(`mana-llm error: ${result.status}`);
+			}
+
+			const data = await result.json();
+			const response = (data.choices?.[0]?.message?.content || '').trim();
 
 			// Parse JSON response - handle potential markdown code blocks
 			let jsonStr = response;

services/mana-media/apps/api/Dockerfile

@@ -10,7 +10,6 @@ WORKDIR /app
 COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
 COPY patches ./patches
 COPY packages/shared-drizzle-config ./packages/shared-drizzle-config
-COPY packages/shared-nestjs-metrics ./packages/shared-nestjs-metrics
 COPY services/mana-media ./services/mana-media
 
 # Install all dependencies
@@ -42,8 +41,6 @@ COPY --from=builder --chown=nestjs:nodejs /app/services/mana-media/apps/api/node
 
 # Copy shared packages that are symlinked
 COPY --from=builder --chown=nestjs:nodejs /app/packages/shared-drizzle-config /app/packages/shared-drizzle-config
-COPY --from=builder --chown=nestjs:nodejs /app/packages/shared-nestjs-metrics /app/packages/shared-nestjs-metrics
-
 # Copy built application
 COPY --from=builder --chown=nestjs:nodejs /app/services/mana-media/apps/api/dist ./dist
 COPY --from=builder --chown=nestjs:nodejs /app/services/mana-media/apps/api/package.json ./

services/mana-media/apps/api/package.json

@@ -13,7 +13,6 @@
 		"db:studio": "drizzle-kit studio"
 	},
 	"dependencies": {
-		"@manacore/shared-nestjs-metrics": "workspace:*",
 		"@nestjs/bullmq": "^11.0.0",
 		"@nestjs/common": "^11.0.0",
 		"@nestjs/config": "^3.3.0",
@@ -26,6 +25,7 @@
 		"minio": "^8.0.0",
 		"postgres": "^3.4.5",
 		"reflect-metadata": "^0.2.0",
+		"prom-client": "^15.1.0",
 		"rxjs": "^7.8.0",
 		"sharp": "^0.33.0",
 		"uuid": "^11.0.0",

services/mana-media/apps/api/src/app.module.ts

@@ -1,7 +1,6 @@
 import { Module } from '@nestjs/common';
 import { ConfigModule } from '@nestjs/config';
 import { BullModule } from '@nestjs/bullmq';
-import { MetricsModule } from '@manacore/shared-nestjs-metrics';
 import { DatabaseModule } from './db/database.module';
 import { UploadModule } from './modules/upload/upload.module';
 import { StorageModule } from './modules/storage/storage.module';
@@ -9,16 +8,13 @@ import { ProcessModule } from './modules/process/process.module';
 import { DeliveryModule } from './modules/delivery/delivery.module';
 import { MatrixModule } from './modules/matrix/matrix.module';
 import { HealthController } from './health.controller';
+import { MetricsController } from './metrics.controller';
 
 @Module({
 	imports: [
 		ConfigModule.forRoot({
 			isGlobal: true,
 		}),
-		MetricsModule.register({
-			prefix: 'media_',
-			excludePaths: ['/health'],
-		}),
 		BullModule.forRoot({
 			connection: {
 				host: process.env.REDIS_HOST || 'localhost',
@@ -33,6 +29,6 @@ import { HealthController } from './health.controller';
 		DeliveryModule,
 		MatrixModule,
 	],
-	controllers: [HealthController],
+	controllers: [HealthController, MetricsController],
 })
 export class AppModule {}

services/mana-media/apps/api/src/metrics.controller.ts

@@ -0,0 +1,31 @@
+import { Controller, Get, Res } from '@nestjs/common';
+import { Response } from 'express';
+import { collectDefaultMetrics, Registry, Counter, Histogram } from 'prom-client';
+
+const register = new Registry();
+register.setDefaultLabels({ service: 'mana-media' });
+collectDefaultMetrics({ register, prefix: 'media_' });
+
+export const httpRequestsTotal = new Counter({
+	name: 'media_http_requests_total',
+	help: 'Total HTTP requests',
+	labelNames: ['method', 'path', 'status'],
+	registers: [register],
+});
+
+export const httpRequestDuration = new Histogram({
+	name: 'media_http_request_duration_seconds',
+	help: 'HTTP request duration in seconds',
+	labelNames: ['method', 'path', 'status'],
+	buckets: [0.005, 0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1, 2.5, 5, 10],
+	registers: [register],
+});
+
+@Controller('metrics')
+export class MetricsController {
+	@Get()
+	async getMetrics(@Res() res: Response) {
+		res.set('Content-Type', register.contentType);
+		res.end(await register.metrics());
+	}
+}

services/matrix-project-doc-bot/src/generation/generation.service.ts

@@ -1,6 +1,5 @@
 import { Injectable, Inject, Logger } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
-import OpenAI from 'openai';
 import { eq, desc } from 'drizzle-orm';
 import { DATABASE_CONNECTION } from '../database/database.module';
 import { generations, projectItems, projects } from '../database/schema';
@@ -13,25 +12,18 @@ type Database = PostgresJsDatabase<typeof schema>;
 @Injectable()
 export class GenerationService {
 	private readonly logger = new Logger(GenerationService.name);
-	private readonly openai: OpenAI;
+	private readonly manaLlmUrl: string;
 	private readonly model: string;
 
 	constructor(
 		@Inject(DATABASE_CONNECTION) private db: Database,
 		private configService: ConfigService
 	) {
-		this.openai = new OpenAI({
-			apiKey: this.configService.get<string>('openai.apiKey'),
-		});
-		this.model = this.configService.get<string>('openai.model') || 'gpt-4o-mini';
+		this.manaLlmUrl = this.configService.get<string>('MANA_LLM_URL') || 'http://localhost:3025';
+		this.model = this.configService.get<string>('openai.model') || 'ollama/gemma3:4b';
 	}
 
 	async generateBlogpost(projectId: string, style: keyof typeof BLOG_STYLES): Promise<string> {
-		const apiKey = this.configService.get<string>('openai.apiKey');
-		if (!apiKey) {
-			throw new Error('OpenAI API key not configured');
-		}
-
 		// Get project info
 		const [project] = await this.db.select().from(projects).where(eq(projects.id, projectId));
 		if (!project) {
@@ -46,7 +38,9 @@ export class GenerationService {
 			.orderBy(projectItems.createdAt);
 
 		if (items.length === 0) {
-			throw new Error('Keine Inhalte im Projekt. Füge zuerst Fotos, Sprachnotizen oder Text hinzu.');
+			throw new Error(
+				'Keine Inhalte im Projekt. Füge zuerst Fotos, Sprachnotizen oder Text hinzu.'
+			);
 		}
 
 		// Build content summary
@@ -76,17 +70,29 @@ Erstellt am: ${project.createdAt.toLocaleDateString('de-DE')}
 
 Die folgenden Inhalte wurden während des Projekts gesammelt:`;
 
-		const response = await this.openai.chat.completions.create({
-			model: this.model,
-			messages: [
-				{ role: 'system', content: systemPrompt },
-				{ role: 'user', content: contentSummary },
-			],
-			temperature: 0.7,
-			max_tokens: 2000,
+		const response = await fetch(`${this.manaLlmUrl}/v1/chat/completions`, {
+			method: 'POST',
+			headers: { 'Content-Type': 'application/json' },
+			body: JSON.stringify({
+				model: this.model,
+				messages: [
+					{ role: 'system', content: systemPrompt },
+					{ role: 'user', content: contentSummary },
+				],
+				temperature: 0.7,
+				max_tokens: 2000,
+			}),
+			signal: AbortSignal.timeout(120000),
 		});
 
-		const content = response.choices[0]?.message?.content || '';
+		if (!response.ok) {
+			const errorText = await response.text();
+			this.logger.error(`mana-llm error: ${response.status} - ${errorText}`);
+			throw new Error(`LLM generation failed: ${response.status}`);
+		}
+
+		const data = await response.json();
+		const content = data.choices?.[0]?.message?.content || '';
 
 		// Save generation
 		await this.db.insert(generations).values({