fix: Keep Spring inspections unavailable while the IDE indexes instead of throwing IndexNotReadyException (242) (#688)

[imuromtsev]

Backport of fix: Keep Spring inspections unavailable while the IDE indexes instead of throwing IndexNotReadyException (#688)
(main squash f3e9b2e87, PR #694) to the 242 line.

Refs #688

Why this base

The defect shipped in generation 34, so it is live on every supported line. This PR targets the generation-35 wave branch
imuromtsev/release-242-gen35 (PR #330) instead of release/242, so the fix ships with that generation rather than
re-releasing an already published one.

What changed

• New InspectionAvailability in modules/base: isIndexReady(file) and hasLibraryClass(file, fqn) check dumb mode before
  any index lookup.
• The inspection base classes and the overrides that skip super (SpringBoot3JakartaMigrationInspection,
  SpringDataBaseUastLocalInspectionTool, SpringJdbcClientParamInspection) go through it.
• LibraryClassCache is unchanged: a cold lookup during indexing still throws IndexNotReadyException, which is the platform's
  retry signal, and the [BUG] Native sync discards a fully collected bean context when a VFS refresh starts dumb mode #433 contract test keeps pinning that behaviour.

Line-specific adaptations

• SpringBaseUastLocalInspectionTool and SpringDataBaseUastLocalInspectionTool keep this line's own shape (no PluginIds
  term in the Spring Data override); only the availability call was changed.
• SpringWebBaseUastLocalInspectionTool does not exist on this line, so its hunk and the spring-web test are left out.
• The other five files are byte-identical to the main commit.

Verification

Two commits: a test-only red commit, then the fix.

• Red (2ff0a2b62): the new dumb-mode tests fail on this line's sources — spring-core 5 of 7, spring-data 2 of 2 fail with
  AssertionError: Threw in dumb mode: IndexNotReadyException. The two LibraryClassCache contract tests pass in both phases,
  as intended.
• Fix (f99a51563): compileTestKotlin plus the same classes, all green — spring-core 7, spring-data 2.

Counts come from the JUnit XML of each phase. The full suite is left to CI on this PR.

• Note: the gen35 CI of this line is already red in NativeSyncDumbModeTest and EventListenerLibraryCrossModuleTest, which predate this PR and are untouched by it.

[imuromtsev]

Closing: the generation-35 wave is refreshed from main in one pass, and f3e9b2e (#694) is inside that pending range, so the pass replays this fix itself. Merging it separately would only add a cherry-pick --skip step. The per-line verification done here (red on the test-only commit, green with compileTestKotlin on the fix, on 242-261) is recorded in COMPATIBILITY.md for the pass.

[github-actions]

	Tests	Passed ☑️	Skipped ⚠️	Failed ❌️
JUnit Test Report	2188 ran	2179 passed	6 skipped	3 failed

• View JUnit Test Report