feat(auto): AUTO-only priority chain with tiered slots + live source probing; CSV export w/ key names; audit persistence; fix prompt token accounting & deepseek thinking

internal/config/config.go

@@ -121,9 +121,11 @@ func (c *Config) ApplyDefaults() error {
 
 // RuntimeConfig is the persisted web-UI editable slice (sources added/edited).
 type RuntimeConfig struct {
-	Sources []Source     `json:"sources"`
-	Keys    []GWKey      `json:"keys,omitempty"`
-	Auto    []ModelScope `json:"auto,omitempty"`
+	Sources         []Source     `json:"sources"`
+	DeletedSources  []string     `json:"deleted_sources,omitempty"`
+	DeletedAdapters []string     `json:"deleted_adapters,omitempty"`
+	Keys            []GWKey      `json:"keys,omitempty"`
+	Auto            []ModelScope `json:"auto,omitempty"`
 }
 
 // GWKey is a gateway API key persisted in the runtime store. Role is "admin"
@@ -144,6 +146,8 @@ type GWKey struct {
 // uses Hours as the window length in hours.
 type ModelScope struct {
 	Model      string `json:"model"`
+	Source     string `json:"source,omitempty"` // optional: pin to one upstream source; "" = any source
+	Tier       int    `json:"tier,omitempty"`
 	TokenQuota int64  `json:"token_quota"`
 	Period     string `json:"period,omitempty"`
 	Hours      int64  `json:"hours,omitempty"`
@@ -160,6 +164,8 @@ func (m *ModelScope) UnmarshalJSON(b []byte) error {
 	}
 	var o struct {
 		Model      string `json:"model"`
+		Source     string `json:"source"`
+		Tier       int    `json:"tier"`
 		TokenQuota int64  `json:"token_quota"`
 		Period     string `json:"period"`
 		Hours      int64  `json:"hours"`
@@ -168,6 +174,8 @@ func (m *ModelScope) UnmarshalJSON(b []byte) error {
 		return err
 	}
 	m.Model = o.Model
+	m.Source = o.Source
+	m.Tier = o.Tier
 	m.TokenQuota = o.TokenQuota
 	m.Period = o.Period
 	m.Hours = o.Hours