fx-bundle

# FX Bundle Use this Skill for one detached foreground effect: a projectile, impact, explosion, pickup, muzzle flash, slash arc, aura loop, or dust effect. It delivers either one static `Texture2D` or one animated `SpriteFrames`; it never delivers a `PackedScene`, particle node, trail, shader, sound, light, collision shape, lifecycle script, or a multi-node effect. Read `.godotmaker/asset-runtime/asset-skill-contract.md` before accepting the request. For animation rhythm, also read `.godotmaker/asset-runtime/animation-planning.md`; it supplies planning ranges, not a reason to change an explicit request or reject a valid style. Validate the shared request with `tools/asset_skill_contract_check.py`, then validate this family with `tools/asset_animated_bundle_contract_check.py --kind request`. At final handoff, call the latter with `--request <request.json> --result <result.json>`. The family checker binds `spec.mode` to the runtime type and source layout. ## Boundary and STOP The request has `asset_type: "fx-bundle"` and `spec.mode` equal to `static` or `animated`. References are optional. Pixel-art requests are unsupported in this version: stop clearly rather than quantizing, nearest-neighbour scaling, or labelling ordinary art as pixel art. Stop only when a required input is unreadable, a declared provider or required reference attachment is objectively unavailable, the request is contradictory, or it asks for an unsupported deliverable such as a particle `PackedScene`....