docs: add a Disclaimer page matching the plugin READMEs

The site carried only a one-line trademark notice in the footer. The plugin
READMEs carry a fuller disclaimer, and the site should say the same things,
adapted to what it actually is: documentation rather than a plugin.

docs/disclaimer.md is new and states that the guide supplies no channels,
playlists, streams, EPG data or provider accounts; that the plugins it
documents work on the reader's own installation; which documented actions
connect to streams and what they do with the bytes (IPTV Checker's probes and
its blank-screen, frozen-video and silent-audio checks, and Stream-Mapparr's
throughput probe, all of which measure and discard rather than record or
redistribute); that the reader is responsible for what they connect Dispatcharr
to; and that trademarks belong to their owners and this guide is not affiliated
with any network, broadcaster, streaming service, IPTV provider, or with the
Dispatcharr project beyond documenting plugins written for it.

mkdocs.yml adds the page to the nav as the last entry and widens the footer
copyright line to match the wording used in the plugin READMEs, with a link to
the full page.

Verified: mkdocs build --strict passes, the page renders at /disclaimer/, and
the footer link resolves. No em dashes, matching the site convention.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YaPiVur4s7oNUtDLBATNCf

Author: PiratesIRC

docs/disclaimer.md

@@ -0,0 +1,13 @@
+# Disclaimer
+
+**This guide provides no television content of any kind.** It supplies no channels, no playlists, no streams, no electronic programme guide data and no provider accounts, and it contains no list of where to obtain any of those. It is documentation: it explains how to configure and run a set of community-built Dispatcharr plugins against the lineup that already exists in **your** Dispatcharr installation.
+
+The plugins described here work on data you already have. They read and rewrite channel names, match stream entries to channels, assign electronic programme guide entries, and set channel visibility, all within your own installation. Most of that work reads *names* rather than the streams themselves.
+
+A few of the documented actions do connect to streams, and every one of them is something you trigger. **IPTV Checker** probes stream URLs already configured in your installation to find out which are dead, and its optional blank-screen, frozen-video and silent-audio checks decode a few seconds of video to judge whether a stream is watchable. **Stream-Mapparr's Probe Stream Throughput** connects to configured stream URLs and reads a few seconds of data to measure delivery speed. These actions measure. They do not record, store, restream or redistribute anything, and what they read is discarded. Nothing is fetched unless you run those actions.
+
+Emailed reports, where a plugin offers them, are handed to the Newsflasharr plugin, which sends them to destinations **you** configured.
+
+**You are responsible for what you connect Dispatcharr to.** Whether a particular provider, subscription, playlist or stream is lawful for you to use depends on your agreement with that provider and on the law where you live. Use only sources you are authorised to use. Nothing in this guide is intended to enable, encourage or assist access to content you have no right to access.
+
+All product names, channel names, network names, callsigns, trademarks and registered trademarks mentioned in this guide, or appearing in its examples, screenshots or the reference data bundled with the plugins it documents, are the property of their respective owners. Channel lineup data is community-compiled from publicly available information. This is an independent, community-written guide. It is not affiliated with, endorsed by, or sponsored by any television network, broadcaster, streaming service or IPTV provider, and it is not affiliated with the Dispatcharr project beyond documenting plugins written for it.

mkdocs.yml

@@ -81,10 +81,13 @@ nav:
     - Plugin Links: reference/plugin-links.md
     - Related Resources: reference/related-resources.md
   - Contributing: contributing.md
+  - Disclaimer: disclaimer.md
 
 copyright: >
-  All product names, trademarks, and registered trademarks mentioned in this project are the property of their respective owners.
-  Channel lineup data is community-compiled from publicly available information and is not affiliated with or endorsed by any TV provider.
+  All product names, channel names, network names, callsigns, trademarks and registered trademarks mentioned in this guide are the property of their respective owners.
+  Channel lineup data is community-compiled from publicly available information. This is an independent, community-written guide, not affiliated with, endorsed by, or sponsored by
+  any television network, broadcaster, streaming service or IPTV provider, and not affiliated with the Dispatcharr project beyond documenting plugins written for it.
+  See the <a href="disclaimer/">Disclaimer</a>.
 
 extra:
   social: