统一 GPT Image 2 尺寸常量

集中维护像素边界和对齐规则
供生成与编辑路径共同引用

server-rs/crates/platform-image/src/vector_engine/constants.rs

@@ -5,3 +5,8 @@ pub const VECTOR_ENGINE_GPT_IMAGE_2_MODEL: &str = GPT_IMAGE_2_MODEL;
 pub const VECTOR_ENGINE_PROVIDER: &str = "vector-engine";
 pub const VECTOR_ENGINE_IMAGE_EDIT_MAX_REFERENCE_IMAGES: usize = 5;
 pub const VECTOR_ENGINE_NANOBANANA_MAX_REFERENCE_IMAGES: usize = 14;
+
+pub(crate) const GPT_IMAGE_2_MIN_PIXELS: u64 = 655_360;
+pub(crate) const GPT_IMAGE_2_MAX_PIXELS: u64 = 8_294_400;
+pub(crate) const GPT_IMAGE_2_MAX_EDGE: u32 = 3_840;
+pub(crate) const GPT_IMAGE_2_DIMENSION_ALIGNMENT: u32 = 16;

server-rs/crates/platform-image/src/vector_engine/raw_edit.rs

@@ -7,7 +7,10 @@ use serde_json::Value;
 use super::{
     audit::build_failure_audit,
     budget::{effective_request_timeout_ms, request_budget_exhausted_error},
-    constants::{GPT_IMAGE_2_MODEL, VECTOR_ENGINE_PROVIDER},
+    constants::{
+        GPT_IMAGE_2_DIMENSION_ALIGNMENT, GPT_IMAGE_2_MAX_EDGE, GPT_IMAGE_2_MAX_PIXELS,
+        GPT_IMAGE_2_MIN_PIXELS, GPT_IMAGE_2_MODEL, VECTOR_ENGINE_PROVIDER,
+    },
     error::PlatformImageError,
     request::vector_engine_images_edit_url,
     types::{DownloadedImage, GeneratedImages, ReferenceImage, VectorEngineImageSettings},
@@ -24,10 +27,10 @@ pub struct RawImageEditOptions {
     pub mask: Option<ReferenceImage>,
 }
 
-pub const RAW_IMAGE_MAX_EDGE: u32 = 3_840;
-pub const RAW_IMAGE_DIMENSION_ALIGNMENT: u32 = 16;
-pub const RAW_IMAGE_MIN_PIXELS: u64 = 655_360;
-pub const RAW_IMAGE_MAX_PIXELS: u64 = 8_294_400;
+pub const RAW_IMAGE_MAX_EDGE: u32 = GPT_IMAGE_2_MAX_EDGE;
+pub const RAW_IMAGE_DIMENSION_ALIGNMENT: u32 = GPT_IMAGE_2_DIMENSION_ALIGNMENT;
+pub const RAW_IMAGE_MIN_PIXELS: u64 = GPT_IMAGE_2_MIN_PIXELS;
+pub const RAW_IMAGE_MAX_PIXELS: u64 = GPT_IMAGE_2_MAX_PIXELS;
 
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 pub enum RawImageEditDimensionError {

server-rs/crates/platform-image/src/vector_engine/request.rs

@@ -1,7 +1,10 @@
 use serde_json::{Map, Value, json};
 
 use super::{
-    constants::{GPT_IMAGE_2_C_MODEL, GPT_IMAGE_2_MODEL},
+    constants::{
+        GPT_IMAGE_2_C_MODEL, GPT_IMAGE_2_DIMENSION_ALIGNMENT, GPT_IMAGE_2_MAX_EDGE,
+        GPT_IMAGE_2_MAX_PIXELS, GPT_IMAGE_2_MIN_PIXELS, GPT_IMAGE_2_MODEL,
+    },
     types::{ReferenceImage, VectorEngineImageSettings},
 };
 
@@ -129,10 +132,10 @@ fn normalize_explicit_pixel_size(value: &str) -> String {
 }
 
 fn clamp_gpt_image_2_pixel_size(size: &str) -> String {
-    const MIN_PIXELS: u64 = 655_360;
-    const MAX_PIXELS: u64 = 8_294_400;
-    const MAX_EDGE: u32 = 3_840;
-    const DIMENSION_ALIGNMENT: u32 = 16;
+    const MIN_PIXELS: u64 = GPT_IMAGE_2_MIN_PIXELS;
+    const MAX_PIXELS: u64 = GPT_IMAGE_2_MAX_PIXELS;
+    const MAX_EDGE: u32 = GPT_IMAGE_2_MAX_EDGE;
+    const DIMENSION_ALIGNMENT: u32 = GPT_IMAGE_2_DIMENSION_ALIGNMENT;
     const MAX_ASPECT_RATIO: f64 = 3.0;
 
     // 中文注释：这里是 VectorEngine 的共享发送边界，只处理 gpt-image-2 的显式像素尺寸。