feat: full integration — app.py wiring, scheduler startup, route registration, README

- Wire blueprints and scheduler into create_app()
- Add start_scheduler param to skip scheduler in tests
- Fix Setting.get/set to use modern db.session.get()
- Remove unused imports from conftest and models
- Add README with quick start and usage guide

Made-with: Cursor

README.md

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+# PI Weekly Newspaper
+
+Generates weekly ePub "newspapers" from the [Plymouth Independent](https://www.plymouthindependent.org/) RSS feed, optimized for the Xtreink X4 e-reader (800x480 screen).
+
+## Quick Start
+
+```bash
+python -m venv .venv
+source .venv/bin/activate
+pip install -r requirements.txt
+python app.py
+```
+
+Open http://localhost:5000 in your browser.
+
+## Features
+
+- **Periodic RSS fetching** with configurable interval
+- **Automatic image processing** — downloads, resizes to e-reader constraints, converts to baseline JPEG
+- **ePub generation** with articles as chapters, table of contents, and embedded images
+- **AI-generated covers** via Pollinations.ai (free, no API key) with text fallback
+- **Web UI** accessible from any device on your network
+- **Scheduled or manual publishing**
+
+## Usage
+
+1. Click **Fetch Now** on the dashboard to pull articles
+2. Go to **Publish**, select the target week, toggle articles on/off
+3. Choose a cover method (AI or Text) and click **Generate Issue**
+4. Download the `.epub` from the **Issues** archive
+
+## Configuration
+
+Settings are editable via the web UI at `/settings`, or in `config.py`:
+
+- `FEED_URL` — RSS feed URL
+- `FETCH_INTERVAL_HOURS` — how often to check for new articles
+- `IMAGE_MAX_LANDSCAPE` / `IMAGE_MAX_PORTRAIT` — image bounding box dimensions
+
+## Access from Other Devices
+
+The app binds to `0.0.0.0:5000`, so access it from any device on your network using your Mac's IP address (e.g., `http://192.168.1.x:5000`).