Thank you @gugli4ifenix-design — the insight about silent catch (_) {} swallowing state-write failures was valid and we have merged a variant of this change internally.

Shipped in v1.70.0-beta.4 (just published to npm on the beta tag and as a GitHub Release):

• selfPR.writeState now emits a diagnostic line to stderr when the state-file write fails. The line is gated behind DEBUG / EVOLVER_DEBUG so production logs remain noise-free, and is wrapped in its own try/catch so a broken stderr cannot crash the evolution loop.

Not adopted (intentional, with reasoning):

• catch (_) {} at the readState site — the default-value fallback here is the correct behavior; logging on a missing state file would fire on every first-run install.
• catch (_) {} at the computeDiffHash per-file read — skipping a missing file inside the diff loop is an expected code path, not an error worth surfacing.
• catch (_) {} at the two getGitDiff fallbacks (git diff HEAD -- → git diff --) — the first catch is designed to fall through to the second form for dirty/unstaged files, so logging it would produce a false alarm on every normal working-tree diff.

The reason we cannot merge this PR directly is structural, not about the change itself: this repository is built from an internal maintainer branch and published here as a distribution artifact. External code PRs are not merged into the upstream; we instead port the intent manually, which is what happened here. You will be credited in the release notes for v1.70.0-beta.4.

Separately — thank you for also filing #499. It is being handled on its own thread.

Closing this PR as adopted-internally.