Add AI marketing and writing tools from PRs #220, #310

New tools added to ToBeMigrated/ directory:

ai_marketing_tools/:
- ai_backlinker: AI-powered backlink generation
- ai_google_ads_generator: Google Ads generation with templates

ai_writers/:
- ai_blog_faqs_writer: FAQ generation for blogs
- ai_copywriter: Multiple copywriter frameworks (AIDA, PAS, 4C, 4R, etc.)
- ai_finance_report_generator: Financial report generation
- ai_story_illustrator: Story illustration
- ai_story_video_generator: Story video generation
- ai_story_writer: AI story writing
- github_blogs: GitHub blog integration
- speech_to_blog: Audio to blog conversion
- twitter_writers: Twitter/X content generation
- youtube_writers: YouTube content generation

These tools are in ToBeMigrated/ for future migration to the main backend.

ToBeMigrated/ai_writers/ai_story_video_generator/README.md

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+# AI Story Video Generator
+
+This module allows users to generate animated story videos using AI. It leverages Google's Gemini model to create stories and generate images for each scene, then combines them into a video.
+
+## Features
+
+- Generate complete stories based on user prompts
+- Create scene-by-scene storyboards
+- Generate images for each scene using Gemini
+- Compile images into an animated video
+- Add background music and text overlays
+- Export videos in MP4 format
+
+## How It Works
+
+1. User provides a story prompt and preferences
+2. AI generates a complete story with multiple scenes
+3. For each scene, an image is generated
+4. Images are compiled into a video with transitions
+5. Optional background music and text overlays are added
+6. The final video is available for download
+
+## Requirements
+
+- Google Gemini API key
+- FFmpeg for video processing
+- Python libraries: moviepy, pillow, requests
+
+## Usage
+
+Access this tool through the Streamlit interface by selecting "AI Story Video Generator" from the main menu.

ToBeMigrated/ai_writers/ai_story_video_generator/__init__.py

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+# AI Story Video Generator module
+from .story_video_generator import write_story_video_generator
+
+__all__ = ["write_story_video_generator"]

ToBeMigrated/ai_writers/ai_story_video_generator/utils.py

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+"""
+Utility functions for the AI Story Video Generator.
+"""
+
+import os
+import tempfile
+import uuid
+from pathlib import Path
+from typing import Optional
+
+# Constants
+TEMP_DIR = Path(tempfile.gettempdir()) / "alwrity_story_generator"
+
+def ensure_temp_dir() -> Path:
+    """Ensure the temporary directory exists and return its path."""
+    os.makedirs(TEMP_DIR, exist_ok=True)
+    return TEMP_DIR
+
+def get_temp_filepath(prefix: str, extension: str) -> str:
+    """Generate a temporary file path with the given prefix and extension."""
+    temp_dir = ensure_temp_dir()
+    return str(temp_dir / f"{prefix}_{uuid.uuid4()}.{extension}")
+
+def clean_temp_files(older_than_hours: int = 24) -> int:
+    """
+    Clean temporary files older than the specified number of hours.
+    
+    Args:
+        older_than_hours: Remove files older than this many hours
+        
+    Returns:
+        Number of files removed
+    """
+    import time
+    from datetime import datetime, timedelta
+    
+    temp_dir = ensure_temp_dir()
+    cutoff_time = time.time() - (older_than_hours * 3600)
+    count = 0
+    
+    for file_path in temp_dir.glob("*"):
+        if file_path.is_file() and file_path.stat().st_mtime < cutoff_time:
+            try:
+                file_path.unlink()
+                count += 1
+            except Exception:
+                pass
+    
+    return count
+
+def format_duration(seconds: float) -> str:
+    """Format seconds into a MM:SS string."""
+    minutes = int(seconds // 60)
+    remaining_seconds = int(seconds % 60)
+    return f"{minutes}:{remaining_seconds:02d}"
+
+def sanitize_filename(filename: str) -> str:
+    """Sanitize a string to be used as a filename."""
+    import re
+    # Remove invalid characters
+    sanitized = re.sub(r'[^\w\s-]', '', filename)
+    # Replace spaces with underscores
+    sanitized = sanitized.strip().replace(' ', '_')
+    return sanitized