[QoL] Makefile addition. Makes both usage and dev more friendly.

[peekknuf]

Description

This PR introduces several make targets (e.g., make up, make down, make logs) to simplify common Docker Compose commands and improve developer experience, addressing the repetitive nature of typing docker compose ....
For consistency sake might want to add make run and make install among some other things, but at this point it's purely stylistic.

Container specific logs have also been quite helpful.
While reviewing container logs using the new make logs-n8n target, an interesting observation was made: even during successful chat pipeline executions, the n8n container logs frequently show errors like:

Error in handler N8nLlmTracing, handleLLMStart: TypeError: fetch failed
Error in handler N8nLlmTracing, handleLLMEnd: TypeError: fetch failed

NOTE: this does not affect the core functionality of the chat pipeline but is noted here for awareness.
Might require further investigation, but not sure if it's issue worthy as it's a silent error and in no way a showstopper.