feat(session): add database preparation boundary PR 1

[MohamadJaara]

Goal

Add the Android boundary for Kalium's explicit user-session database preparation lifecycle.

Changes

• update the Kalium pointer to the preparation API implementation
• add a single Android preparation gate and explicit success/failure mapping
• cover shared preparation, scope reuse, and retryability with focused tests

Impact

This is a foundation-only change. It introduces no screen or consumer behavior yet; later PRs use this boundary before accessing a user database.

Stack

• Epic branch: mo/epic/async-db-migration
• PR 1 of 7

[github-actions]

Test Results

381 tests   - 1 884   381 ✅  - 1 884   20s ⏱️ - 2m 4s
 40 suites  -   210     0 💤 ±    0 
 40 files    -   210     0 ❌ ±    0 

Results for commit 0f4d4ce. ± Comparison against base commit 96e3744.

This pull request removes 1884 tests.

com.wire.android.GlobalObserversManagerTest ‑ given app not visible and valid session, when handling ephemeral messages, then do not call deleteEphemeralMessageEndDate()
com.wire.android.GlobalObserversManagerTest ‑ given app not visible and valid session, when observing app open, then do not retry sending pending messages()
com.wire.android.GlobalObserversManagerTest ‑ given app visible and invalid session, when app opens, then do not retry sending pending messages()
com.wire.android.GlobalObserversManagerTest ‑ given app visible and invalid session, when handling ephemeral messages, then do not call deleteEphemeralMessageEndDate()
com.wire.android.GlobalObserversManagerTest ‑ given app visible and no session, when app opens, then do not retry sending pending messages()
com.wire.android.GlobalObserversManagerTest ‑ given app visible and no session, when handling ephemeral messages, then do not call deleteEphemeralMessageEndDate()
com.wire.android.GlobalObserversManagerTest ‑ given app visible and session failure, when app opens, then do not retry sending pending messages()
com.wire.android.GlobalObserversManagerTest ‑ given app visible and session failure, when handling ephemeral messages, then do not call deleteEphemeralMessageEndDate()
com.wire.android.GlobalObserversManagerTest ‑ given app visible and valid session, when app opens, then retry sending pending messages()
com.wire.android.GlobalObserversManagerTest ‑ given app visible and valid session, when handling ephemeral messages, then call deleteEphemeralMessageEndDate()
…