fix(logs): normalize Deno Deploy "warn" level to "warning"

[ImriKochWix]

Note

Description

Backend function log entries can arrive with runtime-specific log levels that don't match the canonical set the CLI expects (info, warning, error, debug). These non-canonical values caused Zod validation to fail when displaying logs. This PR adds a z.preprocess step that normalizes incoming levels — mapping "warn" to "warning" (Deno Deploy, Cloudflare) and empty/missing or "log" values to "info" (Cloudflare) — before schema validation.

Related Issue

None

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update
• Refactoring (no functional changes)
• Other (please describe):

Changes Made

• Wrapped the `level` field of `FunctionLogEntrySchema` in a `z.preprocess` that normalizes incoming log levels to canonical values.
• Mapped `"warn"` → `"warning"` and empty/falsy or `"log"` → `"info"` so logs from Deno Deploy and Cloudflare runtimes validate correctly.
• Updated the `LogLevelSchema` doc comment to reflect that levels are emitted by all backend function runtimes, not just Deno Deploy.

Testing

• I have tested these changes locally
• I have added/updated tests as needed
• All tests pass (`npm test`)

Checklist

• My code follows the project's style guidelines
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (if applicable)
• My changes generate no new warnings
• I have updated `docs/` (AGENTS.md) if I made architectural changes

Additional Notes

The fix preserves any already-canonical level unchanged, so it is fully backward compatible. No tests were added for the normalization logic.

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_{🤖 Generated by Claude | 2026-06-22 13:45 UTC | 43ef1d0}

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