[SamCT86]

Summary

Fixes #491.

SQLite LIKE treats _ as a single-character wildcard. The existing NOT LIKE 'sqlite_%' filter incorrectly preserves user tables such as sqlitex_cache and sqlite3_import, causing subsequent db reset migration runs to fail.

Escape the underscore so only SQLite's reserved sqlite_ prefix is preserved. Add a native SQLite regression test covering user tables, mixed-case names, views, and sqlite_sequence.

Acceptance criteria

The issue does not specify a formal acceptance checklist; these criteria follow its reported behavior and expected outcome.

• Drop user tables starting with sqlite but not the reserved sqlite_ prefix.
• Drop affected user views.
• Preserve SQLite's internal sqlite_sequence.
• Reproduce the failure on unmodified upstream code.
• Verify the fix with native SQLite and CGO.
• Verify that a second reset succeeds after migration and seeding.

Scope notes

Only migrations/reset.go and the new regression test are changed. No API, generator, or authentication changes.

Validation

Passed locally — Linux/amd64, Go 1.26.9, CGO enabled:

• go test ./migrations -run TestDropSQLiteSchemaOnlyPreservesReservedPrefix -count=1
• go test ./migrations ./database ./config -count=1
• go build -p 4 ./...
• go vet ./migrations ./database ./config
• golangci-lint v2.12.2 run ./migrations ./database ./config — 0 issues
• Native SQLite reset/reapply end-to-end regression — RED before fix, GREEN after fix

Not fully verified:

• go test ./... — attempted; failed or timed out in unrelated CLI/client tests because WSL invoked Windows npx, producing filesystem path errors. The same failure was reproduced against unchanged upstream code.
• Full PostgreSQL/MySQL/SQLite CI matrix — pending hosted CI.
• Full-project lint — only the affected packages were linted.
• Project code-review skill — not run.

Working agreement checklist

• New behavior has a regression test; SQLite passes locally.
• Existing behavior and interfaces are preserved.
• Scope is restricted to issue [bug] gombit db reset on SQLite does not drop tables whose name starts with "sqlite" + any character (e.g. sqlitex_cache), so the re-apply fails with "table already exists" #491.
• This PR links the issue and specifies its acceptance criteria.
• Full database CI matrix — pending.
• Release/changelog classification — not changed in this patch; maintainer review requested if required.

Documentation, generators, frontend assets and API-contract regeneration are outside the scope of this focused bug fix.

[leo-aa88]

LGTM