stacklok / toolhive / 17976260211

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Replace global logger with context-aware logging in operator (#2007)

Resolves #1830

This change replaces all instances of global logger usage in the
ToolHive operator with context-aware logging to preserve trace
context for better observability.

Changes:
- Updated validateRunConfig() to accept context and use log.FromContext()
- Updated helper functions in mcpserver_controller.go to use context-aware logging:
  - ensureRequiredEnvVars()
  - serviceForMCPServer()
  - deploymentNeedsUpdate()
  - generateKubernetesOIDCArgs()
  - generateConfigMapOIDCArgs()
- Removed unused global logger imports
- Updated function signatures to accept context.Context parameters
- Fixed all calling sites to pass context
- Updated test files to accommodate new function signatures
- Fixed linting issues (line length violations)

All tests pass and no regressions introduced.

19 of 35 new or added lines in 2 files covered. (54.29%)

15711 of 35136 relevant lines covered (44.71%)

15.63 hits per line