* fix(playback): handle IPTV proxy URLs without file extensions
IPTV proxy servers (Acexy, Xtream Codes, etc.) use query-string URLs
like `https://proxy.example.com/ace/getstream?infohash=abc` that return
raw MPEG-TS streams without a file extension in the path.
`getExtensionFromUrl()` was returning garbage for these URLs (e.g.
`com/ace/getstream` from splitting on dots across path segments). All
four player backends then misrouted the stream — typically to HLS.js
which failed because the response is raw MPEG-TS, not an HLS manifest.
Root fix: rewrite `getExtensionFromUrl()` to extract the extension from
the last path segment only, returning `undefined` when there is no
dot-separated extension.
Player adjustments: treat `undefined` extension as MPEG-TS (the most
common format for live IPTV proxy streams) across all four backends
(HTML5, ArtPlayer, VideoJs, web-player-view).
* test(m3u-utils): cover URL extension parsing
* fix(playback): preserve query-declared stream extensions
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Co-authored-by: 4gray <serega05@gmail.com>
Use Map and Set lookups for M3U favorite aggregation, dashboard global favorite mapping, and channel-list favorite/group resolution.
Remove the duplicate NgxIndexedDB provider registration and add regression coverage for duplicate URL and earliest-match behavior.
Entire-Checkpoint: c2cea9c530e6
4gray