winlin f7f0676c9e Proxy: Rewrite internal/errors on stdlib with a single withStack struct. ... Replaces the pkg/errors fork with a thin wrapper over the standard library's errors package. A single withStack struct captures stack traces via runtime.Callers, while fmt.Errorf("%w", ...) handles all message wrapping. This enables errors.Is/As/Unwrap chain traversal (the fork silently broke them) and deletes ~190 lines of stack/frame formatting code. Adds table-driven tests at 100% statement coverage. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>		2026-04-19 18:36:59 -04:00
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errors_test.go	Proxy: Rewrite internal/errors on stdlib with a single withStack struct.	2026-04-19 18:36:59 -04:00
errors.go	Proxy: Rewrite internal/errors on stdlib with a single withStack struct.	2026-04-19 18:36:59 -04:00