feat: dragon q6a npu dev demos

[EESN-W]

修改说明

• 翻译 Dragon Q6A 新增 NPU 开发演示案例

[windsurf-bot]

Other comments (5)

• i18n/en/docusaurus-plugin-content-docs/current/common/ai/_fcn-resnet50_qai-app-builder.mdx (66-66) The example command references `./input.jpg` but there's no instruction on how to obtain or create this input file. Consider adding instructions on how users should prepare the actual input.jpg file (download from somewhere, rename the example image, etc.).
• i18n/en/docusaurus-plugin-content-docs/current/common/ai/_sesr_m5_qai-app-builder.mdx (122-128) The example output shows errors related to `xdg-open` failing to open the output image. Consider adding a note that these errors are expected if no suitable image viewer is installed, and that they don't indicate a failure of the inference process itself.
• i18n/en/docusaurus-plugin-content-docs/current/common/ai/_xlsr_qai-app-builder.mdx (122-128) The example output shows multiple errors with xdg-open failing to open the output image. Consider adding a note explaining these errors or providing a solution to view the output image properly.
• i18n/en/docusaurus-plugin-content-docs/current/common/ai/_convnext_tiny_qai-app-builder.mdx (261-263) There are two empty code blocks at the end of the file (lines 261-263) that should be removed as they serve no purpose.
• i18n/en/docusaurus-plugin-content-docs/current/common/ai/_convnext_tiny_qai-app-builder.mdx (14-16) The QAI AppBuilder links in the first section (lines 14 and 16) don't have anchor references, but the duplicate section has them. Consider adding the anchor references (`#installation-methods` and `#configure-qairt-environment-variables`) to the first section for consistency.

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