fix(infra): build native voice deps (opus, datachannel) in Nix closure

pnpm 11 rebuild hanya jalanin script package yang di-approve via
pnpm-workspace.yaml (allowBuilds) DAN abort di kegagalan pertama.
Yaml harus tracked (flake source cuma ikut file git). Tapi pnpm rebuild
tetap gagal karena: (1) node-crc MSRV cargo:: error — dead dep, dihapus
dari deps+patch; (2) sharp install script gagal di sandbox — binary-nya
prebuilt @img, script cuma validasi — dikeluarkan dari approval list;
(3) node-datachannel prebuild CLI TypeError + cmake-js butuh cwd benar.

Fix: loop eksplisit di buildPhase gateway yang jalankan install script
tiap native dep (opus/node-datachannel/zeromq) dengan cwd package dir,
+ cmake (dontUseCmakeConfigure biar stdenv nggak auto-configure),
+ opensslDevEnv = symlinkJoin pkgsStatic.openssl.out (libcrypto.a —
CMakeLists set OPENSSL_USE_STATIC_LIBS=TRUE; pkgs.openssl default
output = bin tanpa lib) + openssl.dev (headers),
+ git (libdatachannel FetchContent clone dari GitHub).

Verifikasi: result store punya opus.node (compile source), node_datachannel.node
(compile source), node-av prebuilt, zeromq prebuilt; runtime smoke test:
PeerConnection instantiate+close OK, OpusEncoder encode OK, dank074
Streamer/prepareStream/playStream load OK.

services/discord-gateway/pnpm-lock.yaml

@@ -44,9 +44,6 @@ importers:
       lru-cache:
         specifier: ^11.5.1
         version: 11.5.2
-      node-crc:
-        specifier: ^4.0.0
-        version: 4.0.0
       openai:
         specifier: ^6.38.0
         version: 6.49.0(ws@8.21.1)(zod@4.4.3)
@@ -875,11 +872,6 @@ packages:
   '@minhducsun2002/leb128@1.0.0':
     resolution: {integrity: sha512-eFrYUPDVHeuwWHluTG1kwNQUEUcFjVKYwPkU8z9DR1JH3AW7JtJsG9cRVGmwz809kKtGfwGJj58juCZxEvnI/g==}
 
-  '@napi-rs/cli@2.18.4':
-    resolution: {integrity: sha512-SgJeA4df9DE2iAEpr3M2H0OKl/yjtg1BnRI5/JyowS71tUWhrfSu2LT0V3vlHET+g1hBVlrO60PmEXwUEKp8Mg==}
-    engines: {node: '>= 10'}
-    hasBin: true
-
   '@napi-rs/nice-android-arm-eabi@1.1.1':
     resolution: {integrity: sha512-kjirL3N6TnRPv5iuHw36wnucNqXAO46dzK9oPb0wj076R5Xm8PfUVA9nAFB5ZNMmfJQJVKACAPd/Z2KYMppthw==}
     engines: {node: '>= 10'}
@@ -1342,9 +1334,6 @@ packages:
   '@types/estree@1.0.9':
     resolution: {integrity: sha512-GhdPgy1el4/ImP05X05Uw4cw2/M93BCUmnEvWZNStlCzEKME4Fkk+YpoA5OiHNQmoS7Cafb8Xa3Pya8m1Qrzeg==}
 
-  '@types/node@22.20.1':
-    resolution: {integrity: sha512-EANqOCF9QFyra+4pfxUcX9STKJpCLjMbObVzljIJomAWSnuSIEAvyzEU53GaajbXJEgdh0iEcPL+DGvpUd4k1Q==}
-
   '@types/node@25.9.5':
     resolution: {integrity: sha512-OScDchr2fwuUmWdf4kZ9h7PcJiYDVInhJizG/biAq3cAvqwYktuy/TYGGdZNMtNTFUP7rnb0NU4TUdm82kt4Rg==}
 
@@ -2147,10 +2136,6 @@ packages:
   node-av@5.2.4:
     resolution: {integrity: sha512-L5r+6k+YGvH5MZX8o55JHQbbeRZ+iFieAb1bhKtpa8hrqBEGuSwdkXRwpE4vd414JqVJsq/EQq6s+3qKeviQTg==}
 
-  node-crc@4.0.0:
-    resolution: {integrity: sha512-531jch48okOhmA9a6flMwEuXxmu+gVkRjS2FEvudiB/b40GODQQsG1qUY5aUZTO+dCC0qR3GSPZ7GI3/mXxnrQ==}
-    engines: {node: '>=20'}
-
   node-fetch@2.7.0:
     resolution: {integrity: sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==}
     engines: {node: 4.x || >=6.0.0}
@@ -2625,9 +2610,6 @@ packages:
     engines: {node: '>=14.17'}
     hasBin: true
 
-  undici-types@6.21.0:
-    resolution: {integrity: sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==}
-
   undici-types@7.24.6:
     resolution: {integrity: sha512-WRNW+sJgj5OBN4/0JpHFqtqzhpbnV0GuB+OozA9gCL7a993SmU+1JBZCzLNxYsbMfIeDL+lTsphD5jN5N+n0zg==}
 
@@ -3352,8 +3334,6 @@ snapshots:
 
   '@minhducsun2002/leb128@1.0.0': {}
 
-  '@napi-rs/cli@2.18.4': {}
-
   '@napi-rs/nice-android-arm-eabi@1.1.1':
     optional: true
 
@@ -3745,10 +3725,6 @@ snapshots:
 
   '@types/estree@1.0.9': {}
 
-  '@types/node@22.20.1':
-    dependencies:
-      undici-types: 6.21.0
-
   '@types/node@25.9.5':
     dependencies:
       undici-types: 7.24.6
@@ -4517,11 +4493,6 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  node-crc@4.0.0:
-    dependencies:
-      '@napi-rs/cli': 2.18.4
-      '@types/node': 22.20.1
-
   node-fetch@2.7.0:
     dependencies:
       whatwg-url: 5.0.0
@@ -4983,8 +4954,6 @@ snapshots:
 
   typescript@5.9.3: {}
 
-  undici-types@6.21.0: {}
-
   undici-types@7.24.6: {}
 
   undici@7.29.0: {}