refactor: add entry-point orchestration and StepRunner

[marvin1099]

Revamp entry_point.py with dependency-gated phase orchestration and extract StepRunner into core/runner.py.

• entry_point.py: main() stripped to pure bootstrap, _run_flow() drives 7 phases with explicit dependency gates and result tracking via settings.internal.main_flow_results.
• core/runner.py: new StepRunner wrapping settings/log/interface with try_step/try_step_code for guarded execution and try_phase/try_phase_code for higher-level dependency-gated wrappers.

Depends on: #283

[shymega]

I'm not comfortable with how much is being done in one MR.

We've also had feedback about our usage of AI, and I think we should focus on a policy to try and address this before adding more LLM-generated code.

I'm not against AI, but I fear that that this commit has had little human input, and AI should assist us, not do it all for us.

[marvin1099]

I'm not comfortable with how much is being done in one MR.

We've also had feedback about our usage of AI, and I think we should focus on a policy to try and address this before adding more LLM-generated code.

I'm not against AI, but I fear that that this commit has had little human input, and AI should assist us, not do it all for us.

At what point do you feel that way?
Lots of this is boilerplate.
The thing is I know what I like, so the ai I dont think is to far off of what I imagined.
I'm more on Torvalds side here.
I think of AI more of as tool, as long as its human checked.
Now if my goal was more to lean how to make the WeMod launcher I would probably go more manual.
But I know the launcher I just need to put it into a more usable package for devs and users.
So I think I mainly good with this.
So you gona need to be a bit more specific what parts may not align with what you have on mind?

[shymega]

Basically, the main thing I want to see done differently is a laid-out plan, agreed between both of us, before implementation.

That way we're working together, and have a solid agreement on how we want to do this.

I'm not necessarily opposed to this PR in fundamentals, but it changes a lot, and should be done in stages. We could have one PR implementing the StepRunner class, then we could agree on the steps we need. I feel a lot of it needs discussing.

Sorry for the delay on getting back to you. I've been trying to work this out in my head.

[marvin1099]

Basically, the main thing I want to see done differently is a laid-out plan, agreed between both of us, before implementation.

Shure.

I'm not necessarily opposed to this PR in fundamentals, but it changes a lot...

I think I have an idea of how you wana do this.
And some more time in the oven of these ideas is probably not bad. Will do more board stuff (possible liked issues) that should work well.