replace Redis with an embedded SQLite string->string KV store (group commit, in-tx events, SQL search)

internal/snapshot/export.go

@@ -24,7 +24,7 @@ type ExportOptions struct {
 	SourceHost string
 }
 
-// Exporter writes snapshot ZIPs from a live Redis store.
+// Exporter writes snapshot ZIPs from the live metadata store.
 type Exporter struct {
 	storage *storage.Client
 }

internal/snapshot/flatten.go

@@ -8,7 +8,7 @@ import (
 	"strings"
 )
 
-// Flat keys use "/" as the separator. Property paths inside Redis are
+// Flat keys use "/" as the separator. Property paths inside the store are
 // stored as e.g. "fileinfo/streamdetails/video/0/codec".
 const flatSep = "/"
 
@@ -33,7 +33,7 @@ func Reconstruct(flat map[string]string) interface{} {
 }
 
 // Flatten is the inverse of Reconstruct: walks a nested value and produces a
-// flat property map whose values are all strings (Redis-ready).
+// flat property map whose values are all strings (store-ready).
 //
 // Arrays become numeric path segments ("genre/0", "genre/1"). Nil/missing
 // values are stored as "" to preserve the field's presence — this matches
@@ -127,7 +127,7 @@ func flattenInto(v interface{}, path string, out map[string]string) {
 		out[path] = ""
 	case map[string]interface{}:
 		if len(t) == 0 && path != "" {
-			// Empty objects don't have a Redis representation; skip.
+			// Empty objects don't have a flat-key representation; skip.
 			return
 		}
 		for k, child := range t {

internal/snapshot/import.go

@@ -73,7 +73,7 @@ type ImportResult struct {
 	PluginOutput *PluginOutputResult `json:"pluginOutput,omitempty"`
 }
 
-// Importer applies snapshot ZIPs to a live Redis store.
+// Importer applies snapshot ZIPs to the live metadata store.
 type Importer struct {
 	storage *storage.Client
 }
@@ -83,7 +83,7 @@ func NewImporter(stor *storage.Client) *Importer {
 }
 
 // Import reads a ZIP from r (which must support io.ReaderAt; callers pass
-// *bytes.Reader after buffering the upload) and applies it to Redis.
+// *bytes.Reader after buffering the upload) and applies it to the store.
 func (i *Importer) Import(r io.ReaderAt, size int64, opts ImportOptions) (*ImportResult, error) {
 	if i.storage == nil || !i.storage.IsConnected() {
 		return nil, fmt.Errorf("storage not connected")

internal/snapshot/wipe.go

@@ -16,7 +16,7 @@ type WipeResult struct {
 	MetadataDeleted int64 `json:"metadataDeleted"`
 }
 
-// Wiper clears metadata from Redis.
+// Wiper clears metadata from the store.
 type Wiper struct {
 	storage *storage.Client
 }