Move 4 src/shared tests that use mock.module() to the isolated test section:
- model-capabilities.test.ts (mocks ./connected-providers-cache)
- log-legacy-plugin-startup-warning.test.ts (mocks ./legacy-plugin-warning)
- model-error-classifier.test.ts
- opencode-message-dir.test.ts
Also isolate recover-tool-result-missing.test.ts (mocks ./storage).
Use find + exclusion pattern in remaining tests to dynamically build the
src/shared file list without the isolated mock-heavy files.
Fixes 6 Linux CI failures caused by bun's mock.module() cache pollution
when running in parallel.
8dd0191ea5