feat(plugin): normalize tool parameter metadata

[FinleyGe]

Summary

• add optional isToolParam input schema metadata across sdk-factory types, docs, skills, CLI templates, and fixtures
• normalize tool detail input schema metadata for root tools and toolset children
• preserve explicit isToolParam values while falling back toolDescription from description.en when needed

Validation

• ./node_modules/.bin/vitest run sdk/factory/src/tool-factory.test.ts packages/infrastructure/src/plugin/tool.impl.test.ts
• ./node_modules/.bin/eslint sdk/factory/src/index.ts sdk/factory/src/tool-factory.test.ts packages/infrastructure/src/plugin/tool.impl.ts packages/infrastructure/src/plugin/tool.impl.test.ts
• git diff --check upstream/main...HEAD

Note: full ./node_modules/.bin/tsc --noEmit still reports the existing unrelated StreamData type error in sdk/factory/src/tool-factory.test.ts.

[github-actions]

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ghcr.io/labring/fastgpt-plugin-pr:server_e513aa753e2d320a67947707a2262cc68e930a68

Time: 2026-07-21 17:53:12 (UTC+8)