Implement pre-commit hooks across all PSModule repos

[MariusStorhaug]

Context

We have documented pre-commit hooks as a practice under the Shift Left principle in the Ways of Working. Pre-commit hooks close the gap between "I can test locally if I choose to" and "it is always checked before it leaves my machine."

We need to implement this consistently across the entire PSModule repo structure.

What needs to happen

• Decide on a pre-commit framework (e.g. pre-commit, Git hooks via Husky, or a PowerShell-native solution)
• Define the standard set of gates to run on commit:
  • Linting / formatting (e.g. PSScriptAnalyzer)
  • Static analysis
  • Secret scanning
  • Fast unit tests (optional — only if sub-second)
• Create a shared, reusable hook configuration that can be adopted by all repos
• Roll out to all active PSModule repos
• Document setup steps in the Ways of Working / developer onboarding docs

Acceptance criteria

• Every PSModule repo has a pre-commit hook configuration checked in at the repo root
• A new contributor can enable hooks with a single command after cloning
• The hooks run in under a few seconds to avoid bypassing pressure
• The hook configuration is the same (or composable from a shared base) across repos