Major template system improvements:
- Remove video_warning field from TemplateConfig model
- Add target_type, has_videos, has_photos to template context
- Templates use {% if target_type == "telegram" and has_videos %}
for conditional Telegram warnings instead of a separate field
- date_format moved from "Telegram" to "Settings" group
- Add target type selector (Telegram/Webhook) in template editor
to preview how templates render for each target type
- All template slots now use JinjaEditor (not plain <input>)
- Preview endpoint accepts target_type parameter
- Clean up TemplateConfigCreate schema (remove stale fields)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Preview button always visible next to Variables for each template slot
- Remove \n\n prefix from video_warning default value
- Use conditional {% if video_warning %} with blank line in templates
- Fix all .jinja2 files and inline defaults to match
- Add SVG favicon (camera + notification dot)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>