research(vfx): pin retail projectile and effect oracle

Establish the executable-backed PhysicsDesc, sequence-gate, PhysicsScript, CreateBlocking, particle-anchor, projectile, and Hidden-state behavior before changing runtime code. Correct stale blocking/threshold claims and synchronize the project instructions with the current UI architecture and matching retail binary.

Add copyright-safe packet and DAT-container fixtures plus a failing installed-DAT conformance audit for projectile shapes, typed tables, recall motion, default scripts, and raw CreateBlocking inventory.

Co-Authored-By: Codex <noreply@openai.com>

tools/PesChainAudit/Program.cs

@@ -58,7 +58,7 @@ foreach (var root in roots)
                     DumpEmitter(eid, pad + "      ", rootForReport);
                     break;
                 case CreateBlockingParticleHook _:
-                    Console.WriteLine($"{head} (no payload — looks at next hook)");
+                    Console.WriteLine($"{head} (package schema omits retail's inherited CreateParticle payload)");
                     break;
                 case SoundHook sh:
                     Console.WriteLine($"{head} sound=0x{(uint)sh.Id:X8}");