fw/services/alarms: add sound playback with selectable tones

[spr4bhu]

This PR adds audio playback to alarms on speaker-capable hardware (Pebble 2 Duo, Pebble Time 2). Each alarm has independent sound and vibration toggles plus a selectable tone (Reveille, Beacon, Bell, Chime). Off by default for existing alarms; new alarms on speaker hardware default to sound + vibration on.

Changes:

• Add sound_enabled, vibrate_enabled, tone fields to AlarmConfig, bit-packed into the existing is_smart union no struct size change. Negative-logic vibrate_disabled bit chosen so legacy data (all bits 0) loads as vibrate-on, sound-off, preserving current behavior on upgrade.
• Add alarm_tones library (src/fw/services/alarms/alarm_tones.c) with 4 in-code SpeakerNote[] arrays. No resource files needed.
• Wire speaker_service_play_note_seq into alarm_popup.c at SpeakerPriorityCritical, looping via the speaker finish event until dismiss/snooze/timeout. Skipped in low-power mode.
• Extend alarm_detail.c with a Sound submenu (Off + 4 tones) and a Vibration toggle, mirroring the existing snooze-delay pattern.
• Add alarm_id to PebbleAlarmClockEvent so the popup can look up the firing alarm's settings.
• All speaker-side code gated on CAPABILITY_HAS_SPEAKER; non-speaker boards are unaffected.

Resolves #1206

[sjp4]

new alarms on speaker hardware default to sound + vibration on

Please no!

[spr4bhu]

Please no!

is the no for default being sound + vibration or is there something else too?

[sjp4]

Please no!

is the no for default being sound + vibration or is there something else too?

Sound being on by default (just my opinion here!)

[spr4bhu]

Please no!

is the no for default being sound + vibration or is there something else too?

Sound being on by default (just my opinion here!)

sure, that can be changed

also can you pretty please take a look at pr #1156 and lmk how are features to be added in the mobile app

[gmarull]

@jplexer ping

[KonradIT]

Agree to keep sound off as default for newly created alarms. Whole reason why I use alarms on pebble is the lack of sound.

[jplexer]

@jplexer ping

wanted to wait until sound-off was the default

[gmarull]

@jplexer ping

wanted to wait until sound-off was the default

I'd actually make default-on for alarms... @ericmigi ?

[ericmigi]

Sound off by default. Not going to change the current behavior

[ericmigi]

Are these settings exposed and configurable on mobile too?

[spr4bhu]

The settings are only visible on the watch rn

Is there a any format you have to move the features from watch to mobileapp ?

[spr4bhu]

The sound is now turned off by default

[gmarull]

there seem to be some intermediate changes that are later removed, please, squash content accordingly so only the final solution is reflected. We do not merge unfinished/broken stuff.

[spr4bhu]

should be fixed now, lmk if any other changes required

[jplexer]

thanks, this looks quite nice! would you be okay with me making one change (specifically to make reveille fit the vibration pattern haha)

[spr4bhu]

sure go ahead

[jplexer]

Continuing work on #1357 tysm for the PR!