feat(perf): ship client perf defaults via Default Options, add perf mods

Pack-side half of the client performance work (analysis/client-perf/).

- Add Default Options 21.1.8 (client). It copies config/defaultoptions/
  options.txt and extra/** into place only when the target is absent, so
  player changes are never clobbered. It is also client-only. packwiz
  `preserve` would also land these files in this repo's server config, which
  matters for DistantHorizons.toml [server]/[common] and SSRD's COMMON config.
- Seed provisional mid-tier defaults generated by
  analysis/client-perf/proposed-configs/build.py --ship: render distance 8,
  DH LOD radius 128 / SSAO off / 2 threads, EMF animation LOD 12, Flywheel
  TRI_LINEAR lighting, LambDynamicLights fast, SSRD 16 chunks, Sound Physics
  16 rays / 2 bounces plus per-tick caps on noisy Create sounds. All values
  are unmeasured; Phase 2 (BENCH-MATRIX.md) replaces them. ModernFix
  dynamic_resources is held back until bench block B6 passes.
- Add Sodium Extra 0.9.4, Reese's Sodium Options 2.2.4, BadOptimizations
  2.4.1 and Particle Core 0.3.3 (all client-side). Their declared ranges match
  the pins (Sodium 0.8.13, fzzy_config, Kotlin for Forge).
- Bump Puzzles Lib 21.1.62 -> 21.1.64 as a bugfix: 21.1.63 restores dropped
  access transformers. The event-cache change in 21.1.64 is Fabric-only.

mods/puzzles-lib.pw.toml

@@ -1,13 +1,13 @@
 name = "Puzzles Lib"
-filename = "puzzleslib-v21.1.62-mc1.21.1+neoforge.jar"
+filename = "puzzleslib-v21.1.64-mc1.21.1+neoforge.jar"
 side = "both"
 
 [download]
-url = "https://cdn.modrinth.com/data/QAGBst4M/versions/1TmfTuyw/puzzleslib-v21.1.62-mc1.21.1%2Bneoforge.jar"
+url = "https://cdn.modrinth.com/data/QAGBst4M/versions/lATqZwtV/puzzleslib-v21.1.64-mc1.21.1%2Bneoforge.jar"
 hash-format = "sha512"
-hash = "241ff7229990305fe5f85521b9c11cd8e2e8d01cb94bbca987aae4d3d9ecbd9115a4b66f618a62d73ef1b569ff8c72434bc1354bbfaf2f69c0e997db034c4883"
+hash = "f60ecfc9fedf9c6967891024711391abdc6ffb45c09030f221e9bf061a5a99323a612cecf19af4b0d86b7a3dd4c49f273e2a9b2d2b61bbc867f85d9f3034f5b7"
 
 [update]
 [update.modrinth]
 mod-id = "QAGBst4M"
-version = "1TmfTuyw"
+version = "lATqZwtV"