Fluentbit Validator

This validates Fluent Bit configs before you deploy them, catching routing mistakes, security issues, and structural problems through static analysis and optional dry-run checks. It runs a Python validator that checks tag matching, required fields, and best practices, then optionally fires up fluent-bit itself in dry-run mode if the binary is available. The execution model is careful about missing dependencies: it degrades gracefully when fluent-bit isn't installed and tells you exactly what got skipped. Findings use a strict three-tier severity system (Error, Warning, Recommendation) with no creative labels allowed, which keeps CI integration predictable. If you maintain Fluent Bit pipelines and want deterministic pre-deploy checks without guessing what broke, this gives you a repeatable audit flow.