Stricter Linting Broke CI: Inside the 2,288-Error Crisis and the dart fix Recovery

A single lint rule upgrade escalated into a 2,288-error CI meltdown, but `dart fix --apply` recovered the codebase automatically in seconds. This incident highlights both the efficiency and limitations of automated code correction—while powerful, these tools require careful verification and systematic processes to avoid introducing new bugs. The key lesson: always batch-fix violations before tightening rules to prevent such cascades.