fix: persist database keys durably [WPB-26997]

[MohamadJaara]

https://wearezeta.atlassian.net/browse/WPB-26997

Summary

• reuse one encrypted SharedPreferences delegate for all global settings views
• use synchronous commits only for database passphrase writes that must be durable before database creation or rekey
• serialize multi-step database-key state transitions within the process

Stack

1. This PR: durable database-key storage infrastructure
2. Raw SQLCipher V2 keys for new user databases
3. Eager global database migration to a fresh raw V2 key

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Test Results

5 853 tests  ±0   5 710 ✅ ±0   4m 31s ⏱️ +8s
  885 suites ±0     143 💤 ±0 
  885 files   ±0       0 ❌ ±0 

Results for commit a3a70b2. ± Comparison against base commit 2a06786.

♻️ This comment has been updated with latest results.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.23%. Comparing base (2a06786) to head (a3a70b2).

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #4281      +/-   ##
=============================================
- Coverage      61.24%   61.23%   -0.01%     
+ Complexity      4013     4012       -1     
=============================================
  Files           2161     2161              
  Lines          69395    69395              
  Branches        6886     6886              
=============================================
- Hits           42499    42496       -3     
  Misses         24134    24134              
- Partials        2762     2765       +3     

see 3 files with indirect coverage changes

---

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[github-actions]

Bencher Report

Branch	${GITHUB_HEAD_REF}
Testbed	ubuntu-latest

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Benchmark	Latency	microseconds (µs)
com.wire.kalium.benchmarks.logic.CoreLogicBenchmark.createObjectInFiles	📈 view plot ⚠️ NO THRESHOLD	913.51 µs
com.wire.kalium.benchmarks.logic.CoreLogicBenchmark.createObjectInMemory	📈 view plot ⚠️ NO THRESHOLD	597,281.24 µs
com.wire.kalium.benchmarks.persistence.MessageReadBenchmark.inboxPagingDeepPageBenchmark	📈 view plot ⚠️ NO THRESHOLD	139,717.71 µs
com.wire.kalium.benchmarks.persistence.MessageReadBenchmark.inboxPagingFirstPageBenchmark	📈 view plot ⚠️ NO THRESHOLD	131,136.29 µs
com.wire.kalium.benchmarks.persistence.MessageReadBenchmark.localMarkAsReadBenchmark	📈 view plot ⚠️ NO THRESHOLD	3,641.23 µs
com.wire.kalium.benchmarks.persistence.MessageReadBenchmark.messagePagingDeepPageBenchmark	📈 view plot ⚠️ NO THRESHOLD	38,214.19 µs
com.wire.kalium.benchmarks.persistence.MessageReadBenchmark.messagePagingFirstPageBenchmark	📈 view plot ⚠️ NO THRESHOLD	22,756.80 µs
com.wire.kalium.benchmarks.persistence.MessagesNoPragmaTuneBenchmark.messageInsertionBenchmark	📈 view plot ⚠️ NO THRESHOLD	1,270,300.49 µs
com.wire.kalium.benchmarks.persistence.MessagesNoPragmaTuneBenchmark.queryMessagesBenchmark	📈 view plot ⚠️ NO THRESHOLD	21,338.46 µs

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