Add Kubernetes configuration and deployment files

[jorgecuesta]

Summary

This commit introduces Kubernetes configuration files for the Pocketdex application, including services, deployments, and PostgreSQL setup. Documentation is provided to guide users through the deployment process.

Type of change

Select one or more:

• New feature, functionality or library
• Bug fix
• Code health or cleanup
• Documentation
• Other (specify)

Testing

Documentation changes (only if making doc changes)

• make docusaurus_start; only needed if you make doc changes

Local Testing (only if making code changes)

• Unit Tests: make go_develop_and_test
• LocalNet E2E Tests: make test_e2e
• See quickstart guide for instructions

PR Testing (only if making code changes)

• DevNet E2E Tests: Add the devnet-test-e2e label to the PR.
  • THIS IS VERY EXPENSIVE, so only do it after all the reviews are complete.
  • Optionally run make trigger_ci if you want to re-trigger tests without any code changes
  • If tests fail, try re-running failed tests only using the GitHub UI as shown here

Sanity Checklist

• I have tested my changes using the available tooling
• I have commented my code
• I have performed a self-review of my own code; both comments & source code
• I create and reference any new tickets, if applicable
• I have left TODOs throughout the codebase, if applicable

[Olshansk]

Reviewed the docs but haven't given it a shot YET.

APproving so we can merge it in.

I also created [1] so @okdas can add it to poktroll in the future.

[1] pokt-network/poktroll#752