Fix Degewo auto-apply (Wohnungshelden iframe), update dependencies, cleanup for production

- Fix Degewo handler to work with Wohnungshelden iframe portal
- Update playwright to >=1.57.0
- Add proper form field selectors for Wohnungshelden
- Fix success status bug (was marking failed submissions as success)
- Clean up .env.example (remove real credentials)
- Update README with housing company support table
- Add BOTFATHER_COMMANDS.txt for easy bot setup
- Add copilot-instructions.md for development context

.github/copilot-instructions.md

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+# Copilot Instructions for inberlin-monitor
+
+## Project Overview
+
+A Python-based apartment monitoring bot for Berlin's public housing portal (inberlinwohnen.de) and WG rooms (wgcompany.de). Monitors listings from 6 housing companies (HOWOGE, Gewobag, Degewo, Gesobau, Stadt und Land, WBM) plus WGcompany, and sends Telegram notifications with optional auto-application via Playwright browser automation.
+
+## Architecture
+
+**Single-file monolith** (`monitor.py`, ~1600 lines) with five main classes:
+- `InBerlinMonitor` - Core scraping/monitoring loop for inberlinwohnen.de, login handling, listing detection
+- `WGCompanyMonitor` - Monitors wgcompany.de WG rooms with configurable search filters
+- `ApplicationHandler` - Company-specific form automation (each `_apply_*` method handles one housing company)
+- `TelegramBot` - Command handling via long-polling in a daemon thread
+- Main loop runs synchronous with `asyncio.get_event_loop().run_until_complete()` for Playwright calls
+
+**Data flow**: Fetch listings → Compare with `listings.json` / `wgcompany_listings.json` → Detect new → Log to CSV → Auto-apply if autopilot enabled (inberlin only) → Save to `applications.json` → Send Telegram notification
+
+## Key Patterns
+
+### Company-specific handlers
+Each housing company has a dedicated `_apply_{company}()` method in `ApplicationHandler`. When adding support for a new company:
+1. Add detection in `_detect_company()` (line ~350)
+2. Add handler call in `apply()` switch (line ~330)
+3. Implement `_apply_newcompany()` following existing patterns (cookie dismiss → find button → fill form → submit → screenshot)
+
+### Listing identification
+Listings are hashed by `md5(key_fields)[:12]` to generate stable IDs:
+- InBerlin: `md5(rooms+size+price+address)`
+- WGcompany: `md5(link+price+size)`
+
+### State management
+- `state.json` - Runtime state (autopilot toggle)
+- `listings.json` - Previously seen inberlinwohnen listings
+- `wgcompany_listings.json` - Previously seen WGcompany listings
+- `applications.json` - Application history with success/failure status
+- `listing_times.csv` / `wgcompany_times.csv` - Time-series data for pattern analysis
+
+## Development
+
+### Run locally
+```bash
+# Install deps (requires Playwright)
+pip install -r requirements.txt
+playwright install chromium
+
+# Set env vars and run
+export TELEGRAM_BOT_TOKEN=... TELEGRAM_CHAT_ID=...
+python monitor.py
+```
+
+### Docker (production)
+```bash
+cp .env.example .env  # Configure credentials
+docker compose up -d
+docker compose logs -f
+```
+
+### Debugging
+- Screenshots saved to `data/` on application failures (`*_nobtn_*.png`)
+- HTML saved to `data/debug_page.html` (inberlin) and `data/wgcompany_debug.html`
+- Full logs in `data/monitor.log`
+
+## Environment Variables
+
+Required: `TELEGRAM_BOT_TOKEN`, `TELEGRAM_CHAT_ID`
+InBerlin login: `INBERLIN_EMAIL`, `INBERLIN_PASSWORD`
+Form data: `FORM_ANREDE`, `FORM_VORNAME`, `FORM_NACHNAME`, `FORM_EMAIL`, `FORM_PHONE`, `FORM_STRASSE`, `FORM_HAUSNUMMER`, `FORM_PLZ`, `FORM_ORT`, `FORM_PERSONS`, `FORM_CHILDREN`, `FORM_INCOME`
+WGcompany: `WGCOMPANY_ENABLED`, `WGCOMPANY_MIN_SIZE`, `WGCOMPANY_MAX_SIZE`, `WGCOMPANY_MIN_PRICE`, `WGCOMPANY_MAX_PRICE`, `WGCOMPANY_BEZIRK`
+
+## Common Tasks
+
+### Fix a broken company handler
+Check `data/*_nobtn_*.png` screenshots and `data/debug_page.html` to see actual page structure. Update selectors in the corresponding `_apply_{company}()` method.
+
+### Add Telegram command
+1. Add case in `TelegramBot._handle_update()` (line ~95)
+2. Implement `_handle_{command}_command()` method
+
+### Modify listing extraction
+- InBerlin: Update regex patterns in `InBerlinMonitor.fetch_listings()`. Test against `data/debug_page.html`.
+- WGcompany: Update parsing in `WGCompanyMonitor.fetch_listings()`. Test against `data/wgcompany_debug.html`.