Normalize early CLI setup of log level and format

[ephur]

Ensure that log_level and log_format are processed early in CLI bootstrapping (before other log calls). May involve minor refactor of cli() entrypoint.

[ephur]

🤖 Initial triage (AI-generated):

This targets the startup behavior in cli(). Currently, log level and format are set after CLIOptionsRoot is validated, but any early log messages (e.g. plugin load, config parse) may escape this logic.

⚙️ Recommended fix:

• Extract early CLI config bootstrap
• Set log.log_level and log_format immediately after flag parsing, before command dispatch
• Use ctx.ensure_object() for continuity

Disclaimer: This triage is AI-generated and may need refinement.