缩略图自动生成背景服务插件

SpineThumbnailGenerateServer/lib/3.4/README.md

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+# Spine 3.4 runtime
+
+Bundled from the official `3.4.02` tag, commit `ef5013143178918ddfc7cabfbddeae7aec7cf84e`, `spine-ts/build/spine-canvas.js`.
+
+Local correction: `SkeletonJson` path-length loop writes `lengths[i]`, not `lengths[i++]`. The original increments twice and reads beyond the source array, producing missing/NaN lengths.
+
+The plugin provides binary decoding and the `AtlasAttachmentLoader` name alias in `js/spine-legacy-binary.js`. Rendering uses the 3.4 attachment vertex API in `js/spine-canvas-clipping.js`. 3.4 has no clipping attachments; no newer attachment types are synthesized.
+
+License: `LICENSES/Spine-3.4-License.txt`.

SpineThumbnailGenerateServer/lib/3.5/README.md

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+# Spine 3.5
+
+Official `3.5.51` tag, commit `2cd9467d2736b7f3a0b81382f117c73823bfb44b`, `spine-ts/build/spine-canvas.js`. The branch named `3.5` contains later 3.6 beta data; this bundle deliberately uses the tag.
+
+Local correction: the path-length loop uses `lengths[i]` instead of `lengths[i++]`, avoiding a double increment and NaN values.
+
+The binary compatibility layer reads 3.5 transform modes and constraint order, but does not read 3.6 dark-slot color or local/relative transform fields. Rendering uses the older attachment vertex interface. The version predates clipping attachments.
+
+The official tag includes matching 3.5.03-beta JSON/SKEL pairs for seven variants. Tank and Raptor have 3.5.49 JSON but 3.5.03-beta SKEL; these are tested independently, not compared as identical exports. No version strings or data are rewritten.
+
+License: `LICENSES/Spine-3.5-License.txt`.