Bug fixes: Null pointer safety, ignored errors, map initialization, logger typo

[DevAnuragT]

Description

While analyzing the CNPG-I Hello World plugin codebase, I identified multiple potential runtime issues and areas for improvement that do not affect the functional behavior of the plugin but improve code safety and readability.

This PR addresses:

Bug Fixes:

• Null Pointer Dereference in lifecycle.go:
  • Added nil checks for operationType and GetType() to avoid panics during lifecycle hooks.
• Ignored Error Return in validation.go:
  • Captured and handled the error return from config.FromParameters for old cluster configuration.
• Map Initialization in lifecycle.go:
  • Ensured Labels and Annotations maps are initialized before assignment to avoid nil map assignment panics.
• Logger Typo Fix:
  • Corrected logger name from cnpg_i_example_lifecyle → cnpg_i_example_lifecycle in multiple files.

Code Quality Improvements:

• Enhanced error messages in status.go for easier debugging when plugin status entries are missing.
• Added timeout context handling in SetStatusInCluster to avoid potential hanging goroutines.
• Minor input validation in config.go to guard against nil plugin helpers.

Impact

• This PR does not change any functional behavior of the plugin.
• It prevents possible runtime panics and improves code hygiene, making the example more robust and production-safe.

Related Issues

N/A (Discovered during analysis of issue #129 but independent of it)

Checklist

• Bug fixes applied without altering functional behavior
• PR scoped only to code hygiene and safety improvements
• Ready for review

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Thanks for your time! Let me know if you'd like me to further split these fixes into smaller PRs.