ItemsAdder resource-pack diagnostics

## Invalid PNG files (1)

File: plugins/CuriosPaper/resource-pack-build/pack.png
Reason: invalid PNG signature
The file was excluded and referenced models use the ItemsAdder missing texture.

## Modern atlas (1)

[Pack] Found 2 grouped resource-pack warning sections affecting 2 custom entries across 4 Vanilla asset versions.
  Unique missing models: 2

  Missing model: artifacts:item/woopee_cushion
    Used by (1):
      - artifacts:item/woopee_cushion

    Declared from: assets/minecraft/items/carrot_on_a_stick.json
    Minecraft material: carrot_on_a_stick
    Affected Versions: 1.21.11, 26.1.1, 26.1.2, 26.2

    What this means:
      The custom entries above eventually reference a model that was not found in the generated resource pack.

    How to fix:
      Check for a typo in 'artifacts:item/woopee_cushion'.
      Make sure 'assets/artifacts/models/item/woopee_cushion.json' exists with the correct namespace and path.
      If another plugin or pack event supplies it, verify that the integration adds the file.
    Technical details:
      Source classification: ORIGINAL_UNRESOLVED
      Validation reason: original model reference is unresolved; no selected pack entry

  Missing model: minecraft:item/gold_chestplate
    Used by (1):
      - minecraft:item/gold_chestplate

    Declared from: assets/curiospaper/items/elytra_golden_chestplate.json
    Minecraft material: elytra_golden_chestplate
    Affected Versions: 1.21.11, 26.1.1, 26.1.2, 26.2

    What this means:
      The custom entries above eventually reference a model that was not found in the generated resource pack.

    How to fix:
      Check for a typo in 'minecraft:item/gold_chestplate'.
      Make sure 'assets/minecraft/models/item/gold_chestplate.json' exists with the correct namespace and path.
      If another plugin or pack event supplies it, verify that the integration adds the file.
    Technical details:
      Source classification: ORIGINAL_UNRESOLVED
      Validation reason: original model reference is unresolved; no selected pack entry