v0.10.0: ports and adapters refactor

- Extract shared manifest types into internal/manifest/types leaf package.
- Extract SQLite adapter into internal/manifest/sqlite.
- Extract JSONL adapter into internal/manifest/jsonl.
- Isolate modernc.org/sqlite import to sqlite/adapter.go.
- Add adapter-backed registry with manifest.Default.
- Adapter-agnostic ConvertManifest in types/.
- MemoryAdapter for in-memory manifest testing.
- CLI uses manifest.Default registry directly.
- SQLite LogWriter type assertion moved into SQLiteAdapter.
- Manifest interface includes Entries(); EntryReader removed.
- No behavior changes. 100% coverage across all 6 packages.

internal/manifest/registry.go

@@ -0,0 +1,34 @@
+package manifest
+
+import (
+	jsonladapter "gitea.k3s.k0.nu/tools/photocli/internal/manifest/jsonl"
+	"gitea.k3s.k0.nu/tools/photocli/internal/manifest/sqlite"
+	"gitea.k3s.k0.nu/tools/photocli/internal/manifest/types"
+)
+
+var (
+	JSONLAdapter  = jsonladapter.Adapter{}
+	SQLiteAdapter = sqlite.Adapter{}
+)
+
+var Default = types.NewRegistry(JSONLAdapter, SQLiteAdapter)
+
+func LoadJSONL(dir string) *jsonladapter.Store {
+	return jsonladapter.Load(dir)
+}
+
+func JSONLPath(dir string) string {
+	return jsonladapter.Path(dir)
+}
+
+func SetJSONLSaveHook(fn func() error) func() error {
+	return jsonladapter.SetSaveHook(fn)
+}
+
+func LoadSQLite(dir string) (Manifest, error) {
+	return sqlite.Load(dir)
+}
+
+func SQLitePath(dir string) string {
+	return sqlite.Path(dir)
+}