Normalize data-first piping flows

[mattiamanzati]

Summary

• normalize data-first Effect and Layer calls into piping flow transformations so they contribute the same subject/callee/args structure as pipeable calls
• distinguish normalized transformations as dataFirst and dataLast, add structural signature matching tests, and add a v3 catchUnfailableEffect regression for Effect.catchAll(Effect.never, ...)
• extract shared bundled Effect test VFS mounting into internal/bundledeffect and update the affected pipings, errors, and quickfix baselines

Validation

• go test ./internal/typeparser
• go test ./internal/effecttest/...
• go test ./internal/rules -run 'TestUpdateReadme|TestUpdateMetadataJSON|TestRulePreviews'
• pnpm lint
• pnpm test
• RUNS=3 ./_tools/perf-check-tsgo.sh

Notes

• no issue reference included for this PR
• the perf smoke run showed no panics; the patched binary exited with regular diagnostics, not a runtime crash