feat(cli): add --log-level flag to CLI commands

[maastrich]

Summary

Closes #2311

Adds a --log-level option to all CLI commands (extract, extract-template, extract-experimental, compile) to control output verbosity.

Log levels

Level	Output
silent	No output at all
error	Errors only
warning	Errors and warnings (e.g. experimental feature notice)
info	Normal informational output — default
verbose	All output including per-locale compilation paths and worker pool size

--verbose is kept as a backward-compatible alias for --log-level=verbose. If both --verbose and a conflicting --log-level are passed, verbose wins with a warning.

Implementation

• packages/cli/src/api/logger.ts — new LogLevel type, initLogger(logLevel) factory returning a Logger with no-op methods for suppressed levels. No per-call level checks scattered through the codebase.
• packages/cli/src/api/workerLogger.ts — implements the full Logger interface; warn/info/verbose are no-ops (errors collected and flushed to the main thread as before).
• All 4 CLI command files receive logLevel in their options type and call initLogger(options.logLevel) at the top of command().
• compileLocale.ts — per-locale success path now correctly uses logger.verbose() instead of the misnamed logger.error() with green text.

Test plan

• Existing compile test suite passes (15/15)
• New tests for logLevel=silent (no output), logLevel=silent on failure (still no output), logLevel=error on failure (errors only, no info)
• Manual test: lingui compile --log-level=silent produces no output
• Manual test: lingui extract --log-level=error suppresses stats but shows errors
• Manual test: lingui compile --verbose --log-level=error warns and uses verbose

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Project	Deployment	Actions	Updated (UTC)
js-lingui	Ready	Preview	May 11, 2026 2:07pm

[codecov]

Codecov Report

❌ Patch coverage is 49.49495% with 50 lines in your changes missing coverage. Please review.
✅ Project coverage is 88.52%. Comparing base (6bb8983) to head (74cb680).
⚠️ Report is 329 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/cli/src/lingui-extract.ts	34.61%	13 Missing and 4 partials ⚠️
packages/cli/src/lingui-compile.ts	35.29%	7 Missing and 4 partials ⚠️
packages/cli/src/lingui-extract-experimental.ts	38.46%	4 Missing and 4 partials ⚠️
packages/cli/src/lingui-extract-template.ts	38.46%	4 Missing and 4 partials ⚠️
packages/cli/src/api/workerLogger.ts	0.00%	5 Missing ⚠️
packages/cli/src/api/compile/compileLocale.ts	85.71%	1 Missing ⚠️

❌ Your patch check has failed because the patch coverage (49.49%) is below the target coverage (70.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #2546       +/-   ##
===========================================
+ Coverage   77.05%   88.52%   +11.47%     
===========================================
  Files          84      119       +35     
  Lines        2157     3426     +1269     
  Branches      555     1003      +448     
===========================================
+ Hits         1662     3033     +1371     
+ Misses        382      342       -40     
+ Partials      113       51       -62     

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