feat(matrix): add Stats Bot and Project Doc Bot services

Complete GDPR-compliant bot suite for Matrix:

matrix-stats-bot (port 3312):
- Analytics reports from Umami
- Commands: !stats, !today, !week, !realtime, !users
- Scheduled daily/weekly reports to Matrix room

matrix-project-doc-bot (port 3313):
- Project documentation with photos, voice, text
- Voice transcription via OpenAI Whisper
- Blog generation with 5 styles (casual, technical, tutorial, social, story)
- Commands: !new, !projects, !switch, !status, !generate, !export
- Uses PostgreSQL + S3 (MinIO) for storage

Changes:
- docker-compose.macmini.yml: Added both Matrix bots
- health-check.sh: Added health checks for both bots

Environment variables required:
- MATRIX_STATS_BOT_TOKEN, MATRIX_PROJECT_DOC_BOT_TOKEN
- OPENAI_API_KEY (for Project Doc Bot)

https://claude.ai/code/session_01E3r5aFW3YLAhEJfsL2ryhv

services/matrix-project-doc-bot/src/project/project.module.ts

@@ -0,0 +1,8 @@
+import { Module } from '@nestjs/common';
+import { ProjectService } from './project.service';
+
+@Module({
+	providers: [ProjectService],
+	exports: [ProjectService],
+})
+export class ProjectModule {}