[Local Development] Feature parity with poktroll and tilt

[Olshansk]

Objective

Achieve parity with poktroll from a local development & observability POV.

Origin Document

https://dev.poktroll.com/develop/developer_guide/quickstart

Goals

• Consistency of tooling & infrastructure between poktroll and path
• Enable a prometheus + grafana localnet observability stack
• Enable hot reloading + scalability in a local PATH development stack

Deliverables

• 1. Go through the instructions in poktroll/quickstart, understand it, and update the documentation in poktroll along the way
• 2. Add tilt to the local development environment in path
• 3. Add prometheus and grafana to the local stack from (2)
• 4. Export, capture and present (in a default dashboard) OS level performance metrics

Non-goals / Non-deliverables

• Custom metrics (application specific) captured in the dasbhoard
• Any code changes in the business logic

General deliverables

• Comments: Add/update TODOs and comments alongside the source code so it is easier to follow.
• Testing: Add new tests (unit and/or E2E) to the test suite.
• Makefile: Add new targets to the Makefile to make the new functionality easier to use.
• Documentation: Update architectural or development READMEs; use mermaid diagrams where appropriate.

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Creator: @Olshansk
Co-Owners: @HebertCL @okdas