Merge RspamdSymbol into SpamTestDetail in OpenAPI spec

Add params field to SpamTestDetail, update RspamdResult.symbols to
reference SpamTestDetail instead of the now-removed RspamdSymbol schema,
and update Go code accordingly.

api/openapi.yaml

@@ -926,6 +926,10 @@ components:
           format: float
           description: Score contribution of this test
           example: -1.9
+        params:
+          type: string
+          description: Symbol parameters or options
+          example: "0.02"
         description:
           type: string
           description: Human-readable description of what this test checks
@@ -975,7 +979,7 @@ components:
         symbols:
           type: object
           additionalProperties:
-            $ref: '#/components/schemas/RspamdSymbol'
+            $ref: '#/components/schemas/SpamTestDetail'
           description: Map of triggered rspamd symbols to their details
           example:
             BAYES_HAM:
@@ -986,25 +990,6 @@ components:
           type: string
           description: Full rspamd report (raw X-Spamd-Result header)
 
-    RspamdSymbol:
-      type: object
-      required:
-        - name
-        - score
-      properties:
-        name:
-          type: string
-          description: Symbol name
-          example: "BAYES_HAM"
-        score:
-          type: number
-          format: float
-          description: Score contribution of this symbol
-          example: -1.9
-        params:
-          type: string
-          description: Symbol parameters or options
-          example: "0.02"
 
     DNSResults:
       type: object

pkg/analyzer/rspamd.go

@@ -59,7 +59,7 @@ func (a *RspamdAnalyzer) AnalyzeRspamd(email *EmailMessage) *api.RspamdResult {
 	}
 
 	result := &api.RspamdResult{
-		Symbols: make(map[string]api.RspamdSymbol),
+		Symbols: make(map[string]api.SpamTestDetail),
 	}
 
 	// Parse X-Spamd-Result header (primary source for score, threshold, and symbols)
@@ -129,7 +129,7 @@ func (a *RspamdAnalyzer) parseSpamdResult(header string, result *api.RspamdResul
 		if len(matches) > 2 {
 			name := matches[1]
 			score, _ := strconv.ParseFloat(matches[2], 64)
-			sym := api.RspamdSymbol{
+			sym := api.SpamTestDetail{
 				Name:  name,
 				Score: float32(score),
 			}

pkg/analyzer/rspamd_test.go

@@ -131,7 +131,7 @@ func TestParseSpamdResult(t *testing.T) {
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			result := &api.RspamdResult{
-				Symbols: make(map[string]api.RspamdSymbol),
+				Symbols: make(map[string]api.SpamTestDetail),
 			}
 			analyzer.parseSpamdResult(tt.header, result)