backup materials and knowledge-base docs

文档润色流和知识库构建流/claude-scholar/skills/bug-detective/references/javascript-errors.md

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+# JavaScript / TypeScript Error Guide
+
+## Frequent failure classes
+- `TypeError` from undefined/null access
+- async error swallowing in `Promise` chains
+- `this` binding mismatches
+- stale closure bugs in hooks or event handlers
+- ESM / CJS import mismatches
+
+## Minimum debugging flow
+1. copy the full stack trace,
+2. identify whether the failure is runtime, bundler, or type-level,
+3. confirm the failing object/value before changing logic,
+4. reproduce with the smallest possible input.