feat(voice): implement DAVE end-to-end encryption

[Snazzah]

Please describe the changes this PR makes and why it should be merged:

Implements the Discord Audio & Video End-to-End Encryption (DAVE) Protocol (PR) using @snazzah/davey.

• State management
• Encryption
• Decryption
• Store clients connected in a set for processProposals
• Fix issue with session downgrades having some packets not play during playback
• Handle decryption issues mid and after transition gracefully
• Add some voice options and propagate some DAVE features

Status and versioning classification:

• Code changes have been tested against the Discord API, or there are no code changes
• I know how to update typings and have done so, or typings don't need updating
• This PR changes the library's interface (methods or parameters added)
• This PR includes breaking changes (methods removed or renamed, parameters moved or removed)

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

2 Skipped Deployments

Name	Status	Preview	Comments	Updated (UTC)
discord-js	⬜️ Ignored (Inspect)	Visit Preview		Jun 6, 2025 2:11am
discord-js-guide	⬜️ Ignored (Inspect)	Visit Preview		Jun 6, 2025 2:11am

[vladfrangu]

Use asynceventemitter like in other packages if you can (unless voice doesn't use it yet, in which case i can look into moving us there)

[Snazzah]

The Networking class nor the VoiceConnection don't seem to use asynceventmitter yet

[vladfrangu]

I'll look into it then

[codecov]

Codecov Report

Attention: Patch coverage is 16.08579% with 313 lines in your changes missing coverage. Please review.

Project coverage is 42.00%. Comparing base (d40ceed) to head (5feb52c).

Files with missing lines	Patch %	Lines
packages/voice/src/networking/DAVESession.ts	8.06%	171 Missing ⚠️
packages/voice/src/networking/Networking.ts	15.12%	101 Missing ⚠️
packages/voice/src/networking/VoiceWebSocket.ts	8.69%	21 Missing ⚠️
packages/voice/src/networking/DAVESessionError.ts	21.42%	11 Missing ⚠️
packages/voice/src/receive/VoiceReceiver.ts	77.77%	6 Missing ⚠️
...ackages/voice/src/util/generateDependencyReport.ts	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #10921      +/-   ##
==========================================
- Coverage   42.69%   42.00%   -0.70%     
==========================================
  Files         262      264       +2     
  Lines       16086    16407     +321     
  Branches     1545     1546       +1     
==========================================
+ Hits         6868     6891      +23     
- Misses       9206     9504     +298     
  Partials       12       12              

Flag	Coverage Δ
brokers	31.41% <ø> (ø)
builders	80.52% <ø> (ø)
collection	100.00% <ø> (ø)
core	0.89% <ø> (ø)
formatters	99.63% <ø> (ø)
proxy	65.88% <ø> (ø)
rest	87.67% <ø> (ø)
util	43.28% <ø> (ø)
utilities	100.00% <ø> (ø)
voice	61.59% <16.08%> (-8.86%)	⬇️
ws	36.29% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.