Adds API, OBS/YouTube integrations, React UI, and Docker deployment

.dockerignore

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+# Git
+.git
+.gitignore
+
+# IDE
+.vs
+.vscode
+.idea
+*.user
+*.suo
+
+# Build outputs
+**/bin
+**/obj
+**/dist
+**/node_modules
+
+# Test outputs
+**/TestResults
+**/coverage
+
+# Docker data (don't include local data in builds)
+docker-data
+docker-logs
+
+# Documentation
+*.md
+!README.md
+
+# Misc
+*.log
+.DS_Store
+Thumbs.db
+
+# Facebook Automation (not needed for main app)
+FacebookAutomation
+
+# CDP Test App (not needed for main app)
+CDPTestApp
+

.env.example

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+# =============================================================================
+# Thrive Stream Controller - Environment Configuration
+# =============================================================================
+# 
+# SETUP INSTRUCTIONS:
+# 1. Copy this file to `.env` in the same directory
+# 2. Fill in your actual values below
+# 3. NEVER commit the `.env` file to source control
+#
+# To use: docker-compose up -d
+# =============================================================================
+
+# -----------------------------------------------------------------------------
+# OBS WebSocket Configuration
+# -----------------------------------------------------------------------------
+# The container connects to OBS running on your host machine.
+# Default OBS WebSocket port is 4455.
+
+# OBS WebSocket URL (use host.docker.internal to reach host from container)
+OBS__WebSocketUrl=ws://host.docker.internal:4455
+
+# OBS WebSocket password (leave empty if OBS has no password set)
+# Find this in OBS: Tools → WebSocket Server Settings
+OBS__Password=
+
+# -----------------------------------------------------------------------------
+# YouTube OAuth Configuration
+# -----------------------------------------------------------------------------
+# Get these from Google Cloud Console:
+# https://console.cloud.google.com/apis/credentials
+#
+# 1. Create a project (or select existing)
+# 2. Enable "YouTube Data API v3"
+# 3. Create OAuth 2.0 credentials (Web application type)
+# 4. Add authorized redirect URI: http://localhost:8080/api/auth/youtube/callback
+
+# YouTube OAuth Client ID (ends with .apps.googleusercontent.com)
+YouTube__ClientId=
+
+# YouTube OAuth Client Secret
+YouTube__ClientSecret=
+
+# OAuth Redirect URI (update port if you change the app port)
+YouTube__RedirectUri=http://localhost:8080/api/auth/youtube/callback
+
+# -----------------------------------------------------------------------------
+# Facebook Live Producer URL
+# -----------------------------------------------------------------------------
+# This is the URL volunteers will be directed to for the manual "Go Live" step.
+# 
+# To find your Page's Live Producer URL:
+# 1. Go to your Facebook Page
+# 2. Click "Live Video" or go to facebook.com/live/producer
+# 3. Select your Page
+# 4. Copy the URL from your browser
+#
+# Example: https://www.facebook.com/live/producer?ref=OBS
+
+Facebook__LiveProducerUrl=https://www.facebook.com/live/producer
+
+# -----------------------------------------------------------------------------
+# Application Settings
+# -----------------------------------------------------------------------------
+
+# Environment (Production, Development)
+ASPNETCORE_ENVIRONMENT=Production
+
+# Database connection string (SQLite - stored in mounted volume)
+ConnectionStrings__DefaultConnection=Data Source=/app/data/thrivestream.db
+
+# =============================================================================
+# NOTES:
+# =============================================================================
+#
+# Double underscores (__) represent nested configuration in .NET.
+# For example: YouTube__ClientId maps to { "YouTube": { "ClientId": "..." } }
+#
+# After first run, you'll need to authorize YouTube in the app:
+# 1. Open http://localhost:8080 in your browser
+# 2. Go to Settings
+# 3. Click "Connect YouTube Account"
+# 4. Complete the OAuth flow
+#
+# The refresh token is stored encrypted in the database, so you only need
+# to authorize once (unless you revoke access).
+# =============================================================================
+

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [master, dev]
+  pull_request:
+    branches: [master]
+
+jobs:
+  build-ui:
+    name: Build UI
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: UI
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: UI/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build
+        run: npm run build
+
+  build-api:
+    name: Build & Test API
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: API
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '9.0.x'
+
+      - name: Restore dependencies
+        run: dotnet restore
+
+      - name: Build
+        run: dotnet build --no-restore --configuration Release
+
+      - name: Test
+        run: dotnet test --no-build --configuration Release --verbosity normal
+
+  docker-build:
+    name: Docker Build Verification
+    runs-on: ubuntu-latest
+    needs: [build-ui, build-api]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build Docker image
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          push: false
+          tags: thrive-stream-controller:ci-test
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          provenance: false
+          sbom: false
+