fix: better suggestions on pg connection error

[sweatybridge]

What kind of change does this PR introduce?

Bug fix

What is the new behavior?

Catch common errors and show suggested resolutions.

Additional context

Add any other context or screenshots.

[coveralls]

Pull Request Test Coverage Report for Build 20456952121

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 4 of 15 (26.67%) changed or added relevant lines in 1 file are covered.
• 21 unchanged lines in 3 files lost coverage.
• Overall coverage decreased (-0.05%) to 56.06%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
internal/utils/connect.go	4	15	26.67%

Files with Coverage Reduction	New Missed Lines	%
internal/gen/keys/keys.go	5	12.9%
internal/utils/misc.go	5	66.13%
internal/start/start.go	11	65.42%

Totals
Change from base Build 20454832107:	-0.05%
Covered Lines:	6836
Relevant Lines:	12194

---

💛 - Coveralls