test(integration): add replicate restore soak test

[corylanou]

📍 Stack map: part of a stacked series — see the canonical PR map for review order, scope, and current blockers.

Description

Adds TestSoakReplicateRestore, an integration soak test that mirrors the issue #1164 replicate/restore corruption scenario against MinIO-backed S3 storage.

This test was moved out of #1166 so #1166 can stay limited to the product fix and focused internal/unit tests.

Motivation and Context

The soak test exercises the longer-running reproduce-and-restore path separately from the smaller product-fix PR. It runs a WAL-mode SQLite database with indexed tables, writes under sustained load, periodically restores from S3-compatible storage, and checks PRAGMA integrity_check on each restored database.

Refs #1164
Refs #1166
Refs #1281

How Has This Been Tested?

gofmt ran on the added test file.

The commit hook passed:

trim trailing whitespace: Passed
fix end of files: Passed
check yaml: Skipped
go-imports-repo: Passed
go-vet-repo-mod: Passed
go-staticcheck-repo-mod: Passed

The full soak test was split out but not run in this branch. On the underlying #1166 stacked branch, the previously red WAL-growth integration test passed:

go test -tags "integration,soak,docker" -run TestWALGrowth -v -timeout 10m ./tests/integration/

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (would cause existing functionality to not work as expected)

Checklist

• My code follows the code style of this project (go fmt, go vet)
• I have tested my changes (go test ./...)
• I have updated the documentation accordingly (if needed)

[github-actions]

PR Build Metrics

✅ All clear — no issues detected

Check	Status	Summary
Binary size	✅	36.98 MB (0.0 KB / 0.00%)
Dependencies	✅	No changes
Vulnerabilities	✅	None detected
Go toolchain	✅	1.25.12 (latest)
Module graph	✅	1240 edges (0)

Binary Size

	Size	Change
Base (7393941)	36.98 MB
PR (697a111)	36.98 MB	0.0 KB (0.00%)

Dependency Changes

No dependency changes.

govulncheck Output

=== Symbol Results ===

No vulnerabilities found.

Your code is affected by 0 vulnerabilities.
This scan also found 0 vulnerabilities in packages you import and 1
vulnerability in modules you require, but your code doesn't appear to call these
vulnerabilities.
Use '-show verbose' for more details.

Build Info

Metric	Value
Build time	41s
Go version	go1.25.12
Commit	697a111

History (8 previous)

Commit	Updated	Status	Summary
9383210	2026-07-08 20:44 UTC	✅	36.93 MB (0.0 KB / 0.00%)
9f3d4ce	2026-07-08 20:40 UTC	✅	36.93 MB (0.0 KB / 0.00%)
e61e8f7	2026-07-08 18:54 UTC	✅	36.93 MB (0.0 KB / 0.00%)
19ce31d	2026-07-08 18:50 UTC	✅	36.93 MB (0.0 KB / 0.00%)
e19a923	2026-07-02 03:44 UTC	✅	36.93 MB (0.0 KB / 0.00%)
b300a4c	2026-06-26 15:05 UTC	✅	36.92 MB (0.0 KB / 0.00%)
eee1186	2026-06-09 20:01 UTC	✅	36.92 MB (0.0 KB / 0.00%)
00ba633	2026-06-09 14:00 UTC	✅	36.92 MB (0.0 KB / 0.00%)

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_{🤖 Updated on each push.}