若干更新迭代

backend/internal/httpapi/openapi.go

@@ -95,7 +95,7 @@ func openAPISchemas() map[string]any {
 			"properties": map[string]any{
 				"capability":    openAPIRef("GenerationCapability"),
 				"engine":        map[string]any{"type": "string", "enum": []string{"jimeng", "seedream", "evolink", "bailian", "seedance", "minimax"}},
-				"model":         map[string]any{"type": "string", "description": "Optional allow-listed model. For image.generate with engine=evolink: gpt-image-2, gpt-image-2.5-flare, gpt-image-2.5-sunburst, or the configured EVOLINK_IMAGE_MODEL. For video.generate with engine=seedance: doubao-seedance-2-0-260128 or doubao-seedance-2-5-260628."},
+				"model":         map[string]any{"type": "string", "description": "Optional allow-listed model, scoped to the selected engine. Image/evolink: gpt-image-2, gpt-image-2.5-flare, gpt-image-2.5-sunburst, or configured EVOLINK_IMAGE_MODEL. Video/seedance: doubao-seedance-2-0-260128 or doubao-seedance-2-5-260628. Video/bailian: wan2.7-i2v-2026-04-25 or wan3.0-video. Video/minimax: MiniMax-H3."},
 				"prompt":        map[string]any{"type": "string", "description": "Prompt text. Required for generation except Seedream layer decomposition, where an empty prompt triggers automatic decomposition."},
 				"inputUrls":     map[string]any{"type": "array", "items": map[string]any{"type": "string", "format": "uri"}, "description": "Reference image URLs for image capabilities."},
 				"imageUrls":     map[string]any{"type": "array", "items": map[string]any{"type": "string", "format": "uri"}, "description": "Alias for image input URLs."},
@@ -104,8 +104,9 @@ func openAPISchemas() map[string]any {
 				"settings": map[string]any{
 					"type": "object", "description": "Provider-specific image or video settings.",
 					"properties": map[string]any{
+						"inputMode":          map[string]any{"type": "string", "enum": []string{"reference", "frames"}, "description": "Video material mode. reference: up to 9 images for MiniMax H3 or 10 for Wan 3.0. frames: one first-frame image for MiniMax, or 1–2 first/last-frame images for Bailian. Omission preserves legacy frame behavior except Wan 3.0, which defaults to reference. Seedance uses reference materials."},
 						"ratio":              map[string]any{"type": "string", "enum": []string{"16:9", "4:3", "1:1", "3:4", "9:16", "21:9", "adaptive"}},
-						"duration":           map[string]any{"type": "integer", "minimum": 2, "maximum": 30, "description": "Limits depend on engine: MiniMax H3 supports 4–15 seconds."},
+						"duration":           map[string]any{"type": "integer", "description": "MiniMax H3: 4–15 seconds. Wan 2.7: 2–15 seconds. Wan 3.0: 2–30 seconds. Seedance 2.0: 4–15 seconds or -1 (automatic); Seedance 2.5: 4–30 seconds or -1."},
 						"resolution":         map[string]any{"type": "string", "enum": []string{"480p", "720p", "1080p", "768P", "2K"}},
 						"size":               map[string]any{"type": "string", "enum": []string{"auto", "1K", "1.5K", "2K"}, "description": "Seedream 5.0 Pro output size. auto is available for layer decomposition only."},
 						"outputFormat":       map[string]any{"type": "string", "enum": []string{"png", "jpeg"}},