fix(helm): Add resource requests and limits

[amdove]

Description

• Many of our cluster components did not have default resource request and limits set. In a dev environment, this doesn't cause issues but can and likely will in production with higher usage.

  Following the "Memory Bounded, CPU Unbounded" approach:

  • Memory: requests = limits (prevents OOM node crashes, memory is non-compressible)

  • CPU: requests only, no limits (avoids Linux CFS throttling issues)

  • Ephemeral Storage: Only added to Tigera Operator (fixes calico-apiserver crashloop disk exhaustion)

• Also adds alerting for Mimir issues in the workload cluster. Sends alerts to Control Room cluster.

Category of change

• Bug fix (non-breaking change which fixes an issue)
• Version upgrade (upgrading the version of a service or product)
• New feature (non-breaking change which adds functionality)
• Build: a code change that affects the build system or external dependencies
• Performance: a code change that improves performance
• Refactor: a code change that neither fixes a bug nor adds a feature
• Documentation: documentation changes
• Breaking change (fix or feature that would cause existing functionality to not work as expected)