Clean up precheck tests

Context

This MR cleans up the integration tests that check some invariants in precheck of manager operations. In particular, it:

• avoids inspection belongs precheck and solves #3210 (closed) ,
• provides more positive tests,
• provides some documentation, and
• puts force_reveal at false by default and solve #2979 (closed) .

Manually testing the MR

dune exec src/proto_alpha/lib_protocol/test/integration/precheck/main.exe

Checklist

• [n/a] Document the interface of any function added or modified (see the coding guidelines)
• [n/a] Document any change to the user interface, including configuration parameters (see node configuration)
• Provide automatic testing (see the testing guide).
• [n/a] For new features and bug fixes, add an item in the appropriate changelog (docs/protocols/alpha.rst for the protocol and the environment, CHANGES.rst at the root of the repository for everything else).
• Select suitable reviewers using the Reviewers field below.
• Select as Assignee the next person who should take action on that MR