feat: 新增商品 Excel 匯入功能與修復 HTTPS 混合內容問題

1. 新增商品 Excel 匯入功能 (ProductImport, Export Template)
2. 調整商品代號驗證規則為 1-5 碼 (Controller & Import)
3. 修正 HTTPS Mixed Content 問題 (AppServiceProvider)

package-lock.json

@@ -7,6 +7,7 @@
             "name": "star-erp",
             "dependencies": {
                 "@inertiajs/react": "^2.3.4",
+                "@radix-ui/react-accordion": "^1.2.12",
                 "@radix-ui/react-alert-dialog": "^1.1.15",
                 "@radix-ui/react-checkbox": "^1.3.3",
                 "@radix-ui/react-collapsible": "^1.1.12",
@@ -851,6 +852,37 @@
             "integrity": "sha512-JTF99U/6XIjCBo0wqkU5sK10glYe27MRRsfwoiq5zzOEZLHU3A3KCMa5X/azekYRCJ0HlwI0crAXS/5dEHTzDg==",
             "license": "MIT"
         },
+        "node_modules/@radix-ui/react-accordion": {
+            "version": "1.2.12",
+            "resolved": "https://registry.npmjs.org/@radix-ui/react-accordion/-/react-accordion-1.2.12.tgz",
+            "integrity": "sha512-T4nygeh9YE9dLRPhAHSeOZi7HBXo+0kYIPJXayZfvWOWA0+n3dESrZbjfDPUABkUNym6Hd+f2IR113To8D2GPA==",
+            "license": "MIT",
+            "dependencies": {
+                "@radix-ui/primitive": "1.1.3",
+                "@radix-ui/react-collapsible": "1.1.12",
+                "@radix-ui/react-collection": "1.1.7",
+                "@radix-ui/react-compose-refs": "1.1.2",
+                "@radix-ui/react-context": "1.1.2",
+                "@radix-ui/react-direction": "1.1.1",
+                "@radix-ui/react-id": "1.1.1",
+                "@radix-ui/react-primitive": "2.1.3",
+                "@radix-ui/react-use-controllable-state": "1.2.2"
+            },
+            "peerDependencies": {
+                "@types/react": "*",
+                "@types/react-dom": "*",
+                "react": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc",
+                "react-dom": "^16.8 || ^17.0 || ^18.0 || ^19.0 || ^19.0.0-rc"
+            },
+            "peerDependenciesMeta": {
+                "@types/react": {
+                    "optional": true
+                },
+                "@types/react-dom": {
+                    "optional": true
+                }
+            }
+        },
         "node_modules/@radix-ui/react-alert-dialog": {
             "version": "1.1.15",
             "resolved": "https://registry.npmjs.org/@radix-ui/react-alert-dialog/-/react-alert-dialog-1.1.15.tgz",