Goal

Add output profiles so users can generate different M3U/XMLTV outputs for different clients, devices, or use cases.

Problem

A single IPTV playlist output may not work equally well for every client. Users may want different outputs for Plex, Channels DVR, Jellyfin, mobile devices, remote access, or family-friendly use.

Examples:

- Plex output with only selected live TV channels
- Channels DVR output using a Tailscale base URL
- Jellyfin output with different grouping
- Kids/family output excluding adult or unwanted groups
- Sports-only output
- HD-only output

Expected behaviour

Allow users to create one or more named output profiles.

Each profile could control:

- included/excluded groups
- enabled channels only
- channels with EPG only
- quality preference: SD / HD / FHD / UHD / 4K
- duplicate handling
- client preset: Generic / Plex / Channels DVR / Jellyfin
- URL mode: Local / Public / Tailscale, once #41 exists
- logo handling
- XMLTV ID formatting

Suggested UI

Outputs / Profiles

Profile name        Client         Channels      URL mode       Actions
Plex Live TV        Plex           450           Public         Copy links / Edit
Channels DVR        Channels DVR   520           Tailscale      Copy links / Edit
Kids                Generic        120           Local          Copy links / Edit

Each profile should expose its own generated URLs:

M3U URL
XMLTV URL

Requirements

• Do not remove or break the existing default output.
• Make profile rules previewable before users save/apply them.
• Avoid destructive changes to the source playlist.
• Make URLs stable per profile where possible.
• Support future client compatibility presets from Add client compatibility presets for Plex, Channels DVR, and Jellyfin #51.

Validation

• Create at least two output profiles from one playlist.
• Confirm each profile produces a different valid M3U output.
• Confirm XMLTV output corresponds to the profile where applicable.
• Confirm generated URLs remain stable.
• Confirm the original/default playlist output still works.

Related

Related to #50 IPTV channel profiles, #51 client compatibility presets, #41 Tailscale base URL support, and #54 duplicate cleanup.