Rebrand project as Hyperia and remove legacy references

[dreaminglucid]

Summary

• audits tracked source, documentation, configuration, file paths, and relevant binary metadata for legacy naming
• standardizes the game name as Hyperia
• removes third-party game names, shorthand, citations, and source URLs in favor of neutral terminology
• renames affected Asset Forge presets and agent content-pack identifiers to generic classic naming
• preserves gameplay behavior while updating public-facing copy, comments, tests, prompts, and metadata

Impact

This gives the project a consistent Hyperia identity and removes legacy references that create branding and copyright risk. Existing Asset Forge consumers using the renamed legacy preset key will need to use classic.

Validation

• residual tracked-text and tracked-path scans: zero matches
• relevant embedded binary string scan: zero matches
• JSON configuration parsing: passed
• PhysX WASM compilation validation: passed
• GLB structure and metadata validation: passed
• production build: 15/15 tasks completed successfully
• package tests: 7,503 passed

Known baseline issues

• four server tests still fail in mock initialization, agent worker/provider setup, and two existing service expectations; the failing behavior is outside this naming diff
• the base commit on main already has failing Test, TypeScript, and Integration workflows
• the plugin build logs an existing tolerated app-bridge type warning while the root build exits successfully

No gameplay behavior changes are intended in this PR.