Rewrites the internal/api comment blocks to rule 32: task, milestone and
rule ids gone, the stories behind them restated as the constraint they
left, stale references corrected (the stream secret is wired from config,
the timezone handler already refreshes the scheduler, the Android app is
the native client, the design docs cited are not in the repo). Also
rewraps comment lines over 80 columns left by the earlier batches.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Adds the client-facing endpoint that issues a signed stream URL for
the current track. Authenticated via the standard session cookie.
Returns {token, exp, url} where url is a fully-formed stream URL
the client passes verbatim to a UPnP / Sonos device's
AVTransport.SetAVTransportURI call.
expSeconds clamped to [60, 86400]; default 21600 (6h) - long enough
to play through any typical track without re-minting mid-playback.
MINSTREL_STREAM_SECRET is loaded from env var with a per-machine
fallback persisted at <Storage.DataDir>/stream_secret (auto-generated
on first boot via 64 random bytes, base64-url-encoded, 0600). The
file-based fallback is operator-machine-scoped runtime state, not a
user-facing setting - chosen over a DB column to avoid a migration
and keep the secret out of cross-instance restores. Operator can
override at any time via the env var; default path requires zero
config.
Tests cover happy-path token issuance + URL formatting, bad-UUID
rejection, unauthenticated rejection, the expSeconds clamp at all
boundaries, secret env override, auto-gen + file persistence at 0600,
second-boot reuse of the persisted file, and rejection of a malformed
env value.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>