сhore: project layout (databases, abi-spec, connection)

[igor-sirotin]

Iterates #7067

Description

1. Moved appdatabase -> internal/db/appdatabase
2. Moved walletdb -> internal/db/walletdb
3. Moved sqlite -> internal/db/sqlite
4. Moved multiaccounts -> internal/db/multiaccounts
5. Moved abi-spec -> internal/abi-spec
6. Moved connection -> internal/connection

[github-actions]

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[status-im-auto]

Jenkins Builds

❔	Commit	#️⃣	Finished (UTC)	Duration	Platform	Result
✔️	52e0af6	#1	2025-12-12 22:15:33	~3 min	linux/status-go	📦zip
❌	52e0af6	#1	2025-12-12 22:16:15	~4 min	macos/nwaku	📄log
✔️	52e0af6	#1	2025-12-12 22:16:27	~4 min	macos/status-go	📦zip
✔️	52e0af6	#1	2025-12-12 22:19:16	~7 min	linux/nwaku	📦zip
✔️	52e0af6	#1	2025-12-12 22:19:41	~7 min	windows/status-go	📦zip
❌	52e0af6	#1	2025-12-12 22:23:05	~11 min	windows/nwaku	📄log
✔️	52e0af6	#3	2025-12-12 23:04:49	~25 min	tests	📄log
✔️	52e0af6	#2	2025-12-12 23:10:05	~15 min	tests-rpc	📄log
✔️	52e0af6	#2	2025-12-12 23:26:20	~11 min	tests-rpc	📄log

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 59.50%. Comparing base (ea40003) to head (52e0af6).

Additional details and impacted files

@@             Coverage Diff              @@
##           develop    #7205       +/-   ##
============================================
+ Coverage    34.95%   59.50%   +24.55%     
============================================
  Files          807      820       +13     
  Lines       111424   113469     +2045     
============================================
+ Hits         38947    67524    +28577     
+ Misses       67560    39030    -28530     
- Partials      4917     6915     +1998     

Flag	Coverage Δ
functional	34.92% <28.57%> (-0.04%)	⬇️
unit	54.81% <100.00%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
accounts-management/persistence_operations.go	50.10% <ø> (ø)
accounts-management/types/keypair.go	65.88% <ø> (+16.47%)	⬆️
cmd/generate-db/main.go	0.00% <ø> (ø)
cmd/push-notification-server/main.go	51.66% <ø> (ø)
internal/abi-spec/utils.go	76.74% <ø> (ø)
internal/circuitbreaker/circuit_breaker.go	96.24% <ø> (ø)
internal/connection/state.go	92.00% <ø> (ø)
internal/db/appdatabase/database.go	72.95% <100.00%> (ø)
internal/db/appdatabase/migrations/migrate.go	100.00% <ø> (ø)
...al/db/appdatabase/migrationsprevnodecfg/migrate.go	100.00% <ø> (ø)
... and 18 more

... and 493 files with indirect coverage changes