v2.0.0: Modularize project into single-responsibility packages

Replaced monolithic modules/ package with a clean architecture:

- core/       config.py, utils.py
- ai/         models.py (ResilientModel), setup.py (init_models)
- story/      planner.py, writer.py, editor.py, style_persona.py, bible_tracker.py
- marketing/  cover.py, blurb.py, fonts.py, assets.py
- export/     exporter.py
- web/        app.py (Flask factory), db.py, helpers.py, tasks.py, routes/{auth,project,run,persona,admin}.py
- cli/        engine.py (run_generation), wizard.py (BookWizard)

Flask routes split into 5 Blueprints; all templates updated with blueprint-
prefixed url_for() calls. Dockerfile and docker-compose updated to use
web.app entry point and new package paths.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

marketing/blurb.py

@@ -0,0 +1,51 @@
+import os
+import json
+from core import utils
+from ai import models as ai_models
+
+
+def generate_blurb(bp, folder):
+    utils.log("MARKETING", "Generating blurb...")
+    meta = bp.get('book_metadata', {})
+
+    beats = bp.get('plot_beats', [])
+    beats_text = "\n".join(f"  - {b}" for b in beats[:6]) if beats else "  - (no beats provided)"
+
+    chars = bp.get('characters', [])
+    protagonist = next((c for c in chars if 'protagonist' in c.get('role', '').lower()), None)
+    protagonist_desc = f"{protagonist['name']} — {protagonist.get('description', '')}" if protagonist else "the protagonist"
+
+    prompt = f"""
+    ROLE: Marketing Copywriter
+    TASK: Write a compelling back-cover blurb for a {meta.get('genre', 'fiction')} novel.
+
+    BOOK DETAILS:
+    - TITLE: {meta.get('title')}
+    - GENRE: {meta.get('genre')}
+    - AUDIENCE: {meta.get('target_audience', 'General')}
+    - PROTAGONIST: {protagonist_desc}
+    - LOGLINE: {bp.get('manual_instruction', '(none)')}
+    - KEY PLOT BEATS:
+{beats_text}
+
+    BLURB STRUCTURE:
+    1. HOOK (1-2 sentences): Open with the protagonist's world and the inciting disruption. Make it urgent.
+    2. STAKES (2-3 sentences): Raise the central conflict. What does the protagonist stand to lose?
+    3. TENSION (1-2 sentences): Hint at the impossible choice or escalating danger without revealing the resolution.
+    4. HOOK CLOSE (1 sentence): End with a tantalising question or statement that demands the reader open the book.
+
+    RULES:
+    - 150-200 words total.
+    - DO NOT reveal the ending or resolution.
+    - Match the genre's marketing tone ({meta.get('genre', 'fiction')}: e.g. thriller = urgent/terse, romance = emotionally charged, fantasy = epic/wondrous, horror = dread-laden).
+    - Use present tense for the blurb voice.
+    - No "Blurb:", no title prefix, no labels — marketing copy only.
+    """
+    try:
+        response = ai_models.model_writer.generate_content(prompt)
+        utils.log_usage(folder, ai_models.model_writer.name, response.usage_metadata)
+        blurb = response.text
+        with open(os.path.join(folder, "blurb.txt"), "w") as f: f.write(blurb)
+        with open(os.path.join(folder, "back_cover.txt"), "w") as f: f.write(blurb)
+    except:
+        utils.log("MARKETING", "Failed to generate blurb.")