feat: add image input to art/avatar modes and notes to replace mode

- Art and Avatar modes now support optional image uploads via paste or
  file picker, sent to Gemini alongside the text prompt
- Initial Replace mode gains an optional textarea for notes to include
  with the uploaded image
- Backend updated to send user images for all modes, appending replace
  instructions only when in replace mode
- Send validation updated to allow image-only messages in art/avatar

package.json

@@ -22,7 +22,7 @@
     "@nhcarrigan/typescript-config": "4.0.0",
     "@tauri-apps/cli": "2.5.0",
     "@types/react": "19.1.2",
-    "@types/react-dom": "19.2.3",
+    "@types/react-dom": "19.1.2",
     "autoprefixer": "10.4.21",
     "eslint": "9.25.1",
     "postcss": "8.5.3",

pnpm-lock.yaml

@@ -37,8 +37,8 @@ importers:
         specifier: 19.1.2
         version: 19.1.2
       '@types/react-dom':
-        specifier: 19.2.3
-        version: 19.2.3(@types/react@19.1.2)
+        specifier: 19.1.2
+        version: 19.1.2(@types/react@19.1.2)
       '@vitejs/plugin-react':
         specifier: 4.4.1
         version: 4.4.1(vite@6.3.2(jiti@1.21.7)(yaml@2.8.3))
@@ -685,10 +685,10 @@ packages:
   '@types/normalize-package-data@2.4.4':
     resolution: {integrity: sha512-37i+OaWTh9qeK4LSHPsyRC7NahnGotNuZvjLSgcPzblpHB3rrCJxAOgI5gCdKm7coonsaX1Of0ILiTcnZjbfxA==}
 
-  '@types/react-dom@19.2.3':
-    resolution: {integrity: sha512-jp2L/eY6fn+KgVVQAOqYItbF0VY/YApe5Mz2F0aykSO8gx31bYCZyvSeYxCHKvzHG5eZjc+zyaS5BrBWya2+kQ==}
+  '@types/react-dom@19.1.2':
+    resolution: {integrity: sha512-XGJkWF41Qq305SKWEILa1O8vzhb3aOo3ogBlSmiqNko/WmRb6QIaweuZCXjKygVDXpzXb5wyxKTSOsmkuqj+Qw==}
     peerDependencies:
-      '@types/react': ^19.2.0
+      '@types/react': ^19.0.0
 
   '@types/react@19.1.2':
     resolution: {integrity: sha512-oxLPMytKchWGbnQM9O7D67uPa9paTNxO7jVoNMXgkkErULBPhPARCfkKL9ytcIJJRGjbsVwW4ugJzyFFvm/Tiw==}
@@ -2940,7 +2940,7 @@ snapshots:
 
   '@types/normalize-package-data@2.4.4': {}
 
-  '@types/react-dom@19.2.3(@types/react@19.1.2)':
+  '@types/react-dom@19.1.2(@types/react@19.1.2)':
     dependencies:
       '@types/react': 19.1.2
 

src-tauri/src/gemini.rs

@@ -83,22 +83,26 @@ fn build_user_gemini_parts(
     user_image_base64: &Option<String>,
     user_image_mime: &Option<String>,
 ) -> Vec<Value> {
-    if mode == "replace" && user_image_base64.is_some() {
+    if let Some(image_data) = user_image_base64.as_deref() {
         let mime = user_image_mime.as_deref().unwrap_or("image/png");
-        let data = user_image_base64.as_deref().unwrap_or("");
         let base_text = user_text.as_deref().unwrap_or("");
-        let final_text = if base_text.is_empty() {
-            REPLACE_MODE_APPEND.to_string()
+        let final_text = if mode == "replace" {
+            if base_text.is_empty() {
+                REPLACE_MODE_APPEND.to_string()
+            } else {
+                format!("{}\n{}", base_text, REPLACE_MODE_APPEND)
+            }
         } else {
-            format!("{}\n{}", base_text, REPLACE_MODE_APPEND)
+            base_text.to_string()
         };
 
-        vec![
-            json!({"inlineData": {"mimeType": mime, "data": data}}),
-            json!({"text": final_text}),
-        ]
+        let mut parts = vec![json!({"inlineData": {"mimeType": mime, "data": image_data}})];
+        if !final_text.is_empty() {
+            parts.push(json!({"text": final_text}));
+        }
+        parts
     } else {
-        // Art/avatar mode, or replace mode follow-up correction (text only)
+        // No image: text-only message
         let text = user_text.as_deref().unwrap_or("");
         vec![json!({"text": text})]
     }

src/components/inputArea.tsx

@@ -256,7 +256,8 @@ const inputArea = ({
     if (isInitialReplace && imageBase64 === undefined) {
       return;
     }
-    if (!isInitialReplace && text.trim().length === 0) {
+    const hasContent = text.trim().length > 0 || imageBase64 !== undefined;
+    if (!isInitialReplace && !hasContent) {
       return;
     }
 
@@ -332,6 +333,9 @@ const inputArea = ({
       : dropZoneInactiveClass,
   ].join(" ");
 
+  const hasNoContent = text.trim().length === 0 && imageBase64 === undefined;
+  const isSendDisabled = isLoading || hasNoContent;
+
   return (
     <div className="border-t border-purple-900/30 p-4 bg-[#0f0a1a]">
       <div className="flex items-center gap-2 mb-2">
@@ -397,6 +401,15 @@ const inputArea = ({
             type="file"
           />
 
+          <textarea
+            className={textareaClass}
+            disabled={isLoading}
+            onChange={handleTextChange}
+            placeholder="Add notes to include with the image (optional)..."
+            rows={2}
+            value={text}
+          />
+
           <button
             className={replaceButtonClass}
             disabled={isLoading || imageBase64 === undefined}
@@ -414,41 +427,40 @@ const inputArea = ({
         </div>
 
         : <div className="flex flex-col gap-3">
-          {mode === "replace"
-            ? <div className="flex flex-col gap-2">
-              {imagePreview === undefined
-                ? <button
-                  className={pasteButtonClass}
-                  onClick={handlePasteButtonClick}
+          <div className="flex flex-col gap-2">
+            {imagePreview === undefined
+              ? <button
+                className={pasteButtonClass}
+                onClick={handlePasteButtonClick}
+                type="button"
+              >
+                {mode === "replace"
+                  ? "📋 Paste replacement image (optional)"
+                  : "📋 Paste image (optional)"}
+              </button>
+
+              : <div className="relative inline-block">
+                <img
+                  alt="Upload preview"
+                  className="max-h-32 rounded-lg border border-purple-700/40"
+                  src={imagePreview}
+                />
+                <button
+                  className={clearButtonClass}
+                  onClick={clearImage}
                   type="button"
                 >
-                  {"📋 Paste replacement image (optional)"}
+                  {"×"}
                 </button>
-
-                : <div className="relative inline-block">
-                  <img
-                    alt="Upload preview"
-                    className="max-h-32 rounded-lg border border-purple-700/40"
-                    src={imagePreview}
-                  />
-                  <button
-                    className={clearButtonClass}
-                    onClick={clearImage}
-                    type="button"
-                  >
-                    {"×"}
-                  </button>
-                </div>}
-              <input
-                accept="image/*"
-                className="hidden"
-                onChange={handleFileChange}
-                ref={fileInputReference}
-                type="file"
-              />
-            </div>
-
-            : null}
+              </div>}
+            <input
+              accept="image/*"
+              className="hidden"
+              onChange={handleFileChange}
+              ref={fileInputReference}
+              type="file"
+            />
+          </div>
 
           <div className="flex gap-3 items-end">
             <textarea
@@ -464,7 +476,7 @@ const inputArea = ({
             />
             <button
               className={sendButtonClass}
-              disabled={isLoading || text.trim().length === 0}
+              disabled={isSendDisabled}
               onClick={handleSend}
               type="button"
             >