✨ feat(mana-media): add unified media processing platform MVP

- Create mana-media service for centralized media handling
- Add upload, processing, and delivery modules
- Configure BullMQ for async transcoding jobs
- Add S3-compatible storage integration
- Create TypeScript client package

Features:
- Multi-format image/video upload
- Async transcoding via ffmpeg
- Adaptive streaming (HLS) support
- Signed URL delivery

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

services/mana-media/apps/api/src/modules/process/process.constants.ts

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+export const PROCESS_QUEUE = 'media-process';
+
+export const IMAGE_VARIANTS = {
+	thumbnail: { width: 200, height: 200, fit: 'cover' as const },
+	medium: { width: 800, height: 800, fit: 'inside' as const },
+	large: { width: 1920, height: 1920, fit: 'inside' as const },
+};
+
+export const SUPPORTED_IMAGE_TYPES = [
+	'image/jpeg',
+	'image/png',
+	'image/webp',
+	'image/gif',
+	'image/avif',
+	'image/heic',
+	'image/heif',
+];
+
+export const SUPPORTED_VIDEO_TYPES = ['video/mp4', 'video/quicktime', 'video/webm', 'video/mpeg'];
+
+export const SUPPORTED_AUDIO_TYPES = ['audio/mpeg', 'audio/wav', 'audio/ogg', 'audio/webm'];
+
+export const SUPPORTED_DOCUMENT_TYPES = [
+	'application/pdf',
+	'application/msword',
+	'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+];

services/mana-media/apps/api/src/modules/process/process.module.ts

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+import { Module, forwardRef } from '@nestjs/common';
+import { BullModule } from '@nestjs/bullmq';
+import { ProcessService } from './process.service';
+import { ProcessWorker } from './process.worker';
+import { PROCESS_QUEUE } from './process.constants';
+import { UploadModule } from '../upload/upload.module';
+
+@Module({
+	imports: [
+		BullModule.registerQueue({
+			name: PROCESS_QUEUE,
+		}),
+		forwardRef(() => UploadModule),
+	],
+	providers: [ProcessService, ProcessWorker],
+	exports: [ProcessService],
+})
+export class ProcessModule {}

services/mana-media/apps/api/src/modules/process/process.service.ts

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+import { Injectable } from '@nestjs/common';
+import sharp from 'sharp';
+import { StorageService } from '../storage/storage.service';
+import { IMAGE_VARIANTS, SUPPORTED_IMAGE_TYPES } from './process.constants';
+
+export interface ProcessResult {
+	thumbnail?: string;
+	medium?: string;
+	large?: string;
+	metadata?: {
+		width?: number;
+		height?: number;
+		format?: string;
+		hasAlpha?: boolean;
+	};
+}
+
+@Injectable()
+export class ProcessService {
+	constructor(private storage: StorageService) {}
+
+	async processImage(
+		mediaId: string,
+		originalKey: string,
+		mimeType: string
+	): Promise<ProcessResult> {
+		if (!SUPPORTED_IMAGE_TYPES.includes(mimeType)) {
+			return {};
+		}
+
+		// Download original
+		const originalBuffer = await this.storage.download(originalKey);
+
+		// Get metadata
+		const image = sharp(originalBuffer);
+		const metadata = await image.metadata();
+
+		const result: ProcessResult = {
+			metadata: {
+				width: metadata.width,
+				height: metadata.height,
+				format: metadata.format,
+				hasAlpha: metadata.hasAlpha,
+			},
+		};
+
+		// Generate variants
+		const basePath = originalKey.replace(/^originals\//, 'processed/').replace(/\.[^.]+$/, '');
+
+		// Thumbnail
+		const thumbKey = `${basePath}/thumb.webp`;
+		const thumbBuffer = await sharp(originalBuffer)
+			.resize(IMAGE_VARIANTS.thumbnail.width, IMAGE_VARIANTS.thumbnail.height, {
+				fit: IMAGE_VARIANTS.thumbnail.fit,
+			})
+			.webp({ quality: 80 })
+			.toBuffer();
+
+		await this.storage.upload(thumbKey, thumbBuffer, 'image/webp');
+		result.thumbnail = thumbKey;
+
+		// Medium (only if original is larger)
+		if (
+			(metadata.width || 0) > IMAGE_VARIANTS.medium.width ||
+			(metadata.height || 0) > IMAGE_VARIANTS.medium.height
+		) {
+			const mediumKey = `${basePath}/medium.webp`;
+			const mediumBuffer = await sharp(originalBuffer)
+				.resize(IMAGE_VARIANTS.medium.width, IMAGE_VARIANTS.medium.height, {
+					fit: IMAGE_VARIANTS.medium.fit,
+					withoutEnlargement: true,
+				})
+				.webp({ quality: 85 })
+				.toBuffer();
+
+			await this.storage.upload(mediumKey, mediumBuffer, 'image/webp');
+			result.medium = mediumKey;
+		}
+
+		// Large (only if original is larger)
+		if (
+			(metadata.width || 0) > IMAGE_VARIANTS.large.width ||
+			(metadata.height || 0) > IMAGE_VARIANTS.large.height
+		) {
+			const largeKey = `${basePath}/large.webp`;
+			const largeBuffer = await sharp(originalBuffer)
+				.resize(IMAGE_VARIANTS.large.width, IMAGE_VARIANTS.large.height, {
+					fit: IMAGE_VARIANTS.large.fit,
+					withoutEnlargement: true,
+				})
+				.webp({ quality: 90 })
+				.toBuffer();
+
+			await this.storage.upload(largeKey, largeBuffer, 'image/webp');
+			result.large = largeKey;
+		}
+
+		return result;
+	}
+
+	async generateThumbnail(
+		buffer: Buffer,
+		options?: { width?: number; height?: number }
+	): Promise<Buffer> {
+		const width = options?.width || IMAGE_VARIANTS.thumbnail.width;
+		const height = options?.height || IMAGE_VARIANTS.thumbnail.height;
+
+		return sharp(buffer).resize(width, height, { fit: 'cover' }).webp({ quality: 80 }).toBuffer();
+	}
+
+	async transformImage(
+		buffer: Buffer,
+		options: {
+			width?: number;
+			height?: number;
+			fit?: 'cover' | 'contain' | 'fill' | 'inside' | 'outside';
+			format?: 'webp' | 'jpeg' | 'png' | 'avif';
+			quality?: number;
+		}
+	): Promise<Buffer> {
+		let pipeline = sharp(buffer);
+
+		if (options.width || options.height) {
+			pipeline = pipeline.resize(options.width, options.height, {
+				fit: options.fit || 'inside',
+				withoutEnlargement: true,
+			});
+		}
+
+		const format = options.format || 'webp';
+		const quality = options.quality || 85;
+
+		switch (format) {
+			case 'webp':
+				pipeline = pipeline.webp({ quality });
+				break;
+			case 'jpeg':
+				pipeline = pipeline.jpeg({ quality });
+				break;
+			case 'png':
+				pipeline = pipeline.png();
+				break;
+			case 'avif':
+				pipeline = pipeline.avif({ quality });
+				break;
+		}
+
+		return pipeline.toBuffer();
+	}
+}

services/mana-media/apps/api/src/modules/process/process.worker.ts

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+import { Processor, WorkerHost } from '@nestjs/bullmq';
+import { Job } from 'bullmq';
+import { ProcessService } from './process.service';
+import { UploadService } from '../upload/upload.service';
+import { PROCESS_QUEUE, SUPPORTED_IMAGE_TYPES } from './process.constants';
+
+interface ProcessJobData {
+	mediaId: string;
+	mimeType: string;
+	originalKey: string;
+}
+
+@Processor(PROCESS_QUEUE)
+export class ProcessWorker extends WorkerHost {
+	constructor(
+		private processService: ProcessService,
+		private uploadService: UploadService
+	) {
+		super();
+	}
+
+	async process(job: Job<ProcessJobData>): Promise<void> {
+		const { mediaId, mimeType, originalKey } = job.data;
+
+		console.log(`Processing media ${mediaId} (${mimeType})`);
+
+		try {
+			if (SUPPORTED_IMAGE_TYPES.includes(mimeType)) {
+				await this.processImage(mediaId, originalKey, mimeType);
+			} else {
+				// For unsupported types, just mark as ready
+				await this.uploadService.update(mediaId, { status: 'ready' });
+			}
+		} catch (error) {
+			console.error(`Failed to process media ${mediaId}:`, error);
+			await this.uploadService.update(mediaId, { status: 'failed' });
+			throw error;
+		}
+	}
+
+	private async processImage(
+		mediaId: string,
+		originalKey: string,
+		mimeType: string
+	): Promise<void> {
+		const result = await this.processService.processImage(mediaId, originalKey, mimeType);
+
+		await this.uploadService.update(mediaId, {
+			status: 'ready',
+			keys: {
+				original: originalKey,
+				thumbnail: result.thumbnail,
+				medium: result.medium,
+				large: result.large,
+			},
+			metadata: result.metadata,
+		});
+
+		console.log(
+			`Processed image ${mediaId}: thumbnail=${!!result.thumbnail}, medium=${!!result.medium}, large=${!!result.large}`
+		);
+	}
+}