feat: multiple search indexes (#2514)

* refactor: abstract search interface

* wip: ~

* fix cycle import

* objs update hook

* wip: ~

* Delete search/none

* auto update index while cache changed

* db searcher

TODO: bleve init issue

cannot open index, metadata missing

* fix size type

why float64??

* fix typo

* fix nil pointer using

* api adapt ui

* bleve: fix clear & change struct

internal/conf/config.go

@@ -45,13 +45,13 @@ type Config struct {
 	Database       Database  `json:"database"`
 	Scheme         Scheme    `json:"scheme"`
 	TempDir        string    `json:"temp_dir" env:"TEMP_DIR"`
-	IndexDir       string    `json:"index_dir" env:"INDEX_DIR"`
+	BleveDir       string    `json:"bleve_dir" env:"BLEVE_DIR"`
 	Log            LogConfig `json:"log"`
 }
 
 func DefaultConfig() *Config {
 	tempDir := filepath.Join(flags.DataDir, "temp")
-	indexDir := filepath.Join(flags.DataDir, "index")
+	indexDir := filepath.Join(flags.DataDir, "bleve")
 	logPath := filepath.Join(flags.DataDir, "log/log.log")
 	dbPath := filepath.Join(flags.DataDir, "data.db")
 	return &Config{
@@ -66,7 +66,7 @@ func DefaultConfig() *Config {
 			TablePrefix: "x_",
 			DBFile:      dbPath,
 		},
-		IndexDir: indexDir,
+		BleveDir: indexDir,
 		Log: LogConfig{
 			Enable:     true,
 			Name:       logPath,