[feat] : Implement complete FFmpeg worker and HLS video processing pipeline

.dockerignore

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+node_modules
+.git
+.github
+dist
+video
+test
+*.log
+*.md
+.env
+.env.*
+!.env.example
+.DS_Store
+.gitignore
+.dockerignore
+.eslintcache
+coverage
+.nyc_output
+docs

.env.example

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+# ==============================================================================
+# SHARED (Required for BOTH Production & Development)
+# ==============================================================================
+
+# Core System Services
+PORT=3000
+REDIS_URL=rediss://user:password@host:port
+DATABASE_URL=postgresql://user:password@host:port/dbname
+CORS_ORIGIN=*
+
+# Azure Blob Storage (Shared Configuration)
+AZURE_STORAGE_CONTAINER_NAME=video-assets
+CONTAINER_DIRECTORY_1=encoded/hls/v1
+AZURE_UPLOAD_BATCH_SIZE=20
+AZURE_UPLOAD_RETRIES=3
+
+# Queue Stability
+WORKER_CONCURRENCY=1
+JOB_LOCK_DURATION_MS=120000
+JOB_LOCK_RENEW_MS=30000
+
+# Video Pipeline Settings
+# "SINGLE_FILE" (Byte-range fMP4) or "SEGMENTED" (Standard chunks)
+HLS_OUTPUT_MODE="SEGMENTED"
+
+
+# ==============================================================================
+# PRODUCTION ONLY
+# ==============================================================================
+NODE_ENV=production
+
+# Azure Managed Identity URL (Replaces the connection string in production for zero-trust security)
+AZURE_STORAGE_ACCOUNT_URL=https://<your-storage-account-name>.blob.core.windows.net
+
+
+# ==============================================================================
+# DEVELOPMENT ONLY
+# ==============================================================================
+NODE_ENV=development
+
+# Azure Connection String (Used locally before deploying to Managed Identity infrastructure)
+AZURE_STORAGE_CONNECTION_STRING=DefaultEndpointsProtocol=https;AccountName=...
+
+# Dev / Testing Overrides
+# Truncates video source to N seconds to test pipelines quickly without rendering full video
+TEST_DURATION_SECONDS=15
+
+# Mock Payload Data (Used by test/queue-job.test.local.ts)
+RAW_VIDEO_SOURCE_URL=http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4

.prettierrc

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+{
+  "semi": true,
+  "trailingComma": "all",
+  "singleQuote": true,
+  "printWidth": 100,
+  "tabWidth": 3,
+  "useTabs": false,
+  "arrowParens": "always",
+  "endOfLine": "lf",
+  "bracketSpacing": true,
+  "proseWrap": "always",
+  "embeddedLanguageFormatting": "auto"
+}