Remove resolvePm2 and fix pm2 types

[fredrikekelund]

Related issues

• Fixes STU-1082

Proposed Changes

This PR changes how we import pm2. pm2 exports two members: default (an instantiated API) and custom (the original API class). By importing custom and passing the pm2_home config prop, we can remove the resolvePm2 logic.

The only problem is that the custom member isn't accounted for in the pm2 type definitions. I've submitted a PR Unitech/pm2#6064 to pm2 to fix this. Until that's merged, I've updated our pm2 patch to include my changes from that PR.

Tip

View the upstream PR diff with whitespace changes hidden to see that I haven't actually changed all that much in types/index.d.ts

Testing Instructions

1. Lint CI should pass
2. Run npm run cli:build
3. Run node dist/cli/main.js site list
4. Ensure that it finishes successfully

Pre-merge Checklist

• Have you checked for TypeScript, React or other console errors?

[github-actions]

📊 Performance Test Results

Comparing 4c2ad03 vs trunk

site-editor

Metric	trunk	4c2ad03	Diff	Change
load	13764.00 ms	13098.00 ms	-666.00 ms	🟢 -4.8%

site-startup

Metric	trunk	4c2ad03	Diff	Change
siteCreation	23554.00 ms	20680.00 ms	-2874.00 ms	🟢 -12.2%
siteStartup	9033.00 ms	9029.00 ms	-4.00 ms	🟢 -0.0%

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Results are median values from multiple test runs.

Legend: 🟢 Improvement (faster) | 🔴 Regression (slower) | ⚪ No change