feat(kernel-cli): filter daemon log entries below a minimum severity

[FUDCo]

Small, self-contained quality-of-life change to the daemon's log transport, extracted from chip/orchestration-demo. Independent of the kernel work in #1007 — this branches off main directly rather than stacking.

Problem

daemon.log recorded every level. In practice debug output — refcount churn especially — dominated the file badly enough to make it hard to read while debugging anything else. On a busy daemon the signal you actually want is buried.

Change

The file transport drops entries below a minimum severity, defaulting to info. Set $OCAP_DAEMON_LOG_LEVEL=debug to record everything again.

Two details worth a reviewer's eye:

• LOG_LEVELS mirrors @metamask/logger's level ordering locally because logLevels isn't part of that package's public surface. If it's ever exported, this should switch to importing it rather than keeping a copy in sync.
• It's declared above the file-scope logger construction deliberately. The transport factory is invoked during module init, so a later declaration would put LOG_LEVELS in its temporal dead zone at exactly the moment it's read.

Not included

The fatal-path handler work that lives in the same file is already on main (#966), so this PR touches only the level-filtering lines.

Validation

@metamask/kernel-cli builds, lints, and its tests pass. Changelog entry follows in a second commit once this PR has a number to link to.

🤖 Generated with Claude Code

---

Note

Low Risk
Observability-only change to log file filtering; no auth, RPC, or persistence behavior is affected.

Overview
daemon.log now skips entries below a minimum severity (default info) in the daemon file transport, so noisy debug lines no longer bury useful output.

The threshold comes from OCAP_DAEMON_LOG_LEVEL; set it to debug to record all levels again. makeFileTransport compares each entry against a local LOG_LEVELS map (mirroring @metamask/logger ordering, since levels aren’t exported). Changelog documents the behavior change.

^{Reviewed by Cursor Bugbot for commit 66dc26d. Bugbot is set up for automated code reviews on this repo. Configure here.}

[github-actions]

Coverage Report

Status	Category	Percentage	Covered / Total
🔵	Lines	71.31% ⬇️ -0.05%	8890 / 12465
🔵	Statements	71.14% ⬇️ -0.05%	9041 / 12707
🔵	Functions	72.46% ⬇️ -0.02%	2142 / 2956
🔵	Branches	64.82% ⬇️ -0.07%	3595 / 5546

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
packages/kernel-cli/src/commands/daemon-entry.ts	0% 🟰 ±0%	0% 🟰 ±0%	0% 🟰 ±0%	0% 🟰 ±0%	19-240

Generated in workflow #4576 for commit 66dc26d by the Vitest Coverage Report Action