feat: add env var support for logs and make config optional

[s0up4200]

This PR enhances the application's configuration flexibility by:

• Adding environment variable support for all logging settings
• Making config.toml optional when required env vars are present
• Adding type documentation for all env vars in docker-compose.yml

Required env vars to run without config:

REDACTEDHOOK__API_TOKEN=
REDACTEDHOOK__RED_APIKEY=
REDACTEDHOOK__OPS_APIKEY=

Testing:

• Test starting without config.toml using env vars
• Verify env vars override config file values