feat(extensions): add ZIP installation and unify action dialogs

frontend/src/services/apiClient.ts

@@ -84,6 +84,9 @@ async function request<T>(path: string, options: RequestOptions = {}): Promise<T
 }
 
 export const apiClient = {
+  postBinary<T>(path: string, body: Blob) {
+    return request<T>(path, { method: 'POST', body, headers: { 'Content-Type': 'application/zip' } })
+  },
   get<T>(path: string, options?: Omit<RequestOptions, 'method'>) {
     return request<T>(path, { ...options, method: 'GET' })
   },

frontend/src/services/pluginService.ts

@@ -50,8 +50,11 @@ export async function getPlugin(pluginId: string): Promise<Plugin> {
   return toPlugin(await apiClient.get<ApiPlugin>(`/api/plugins/${pluginId}`))
 }
 
-export async function installPlugin(packagePath: string): Promise<Plugin> {
-  return toPlugin(await apiClient.post<ApiPlugin>('/api/plugins/install', { package_path: packagePath }))
+export async function installPlugin(source: string | File): Promise<Plugin> {
+  const installed = typeof source === 'string'
+    ? await apiClient.post<ApiPlugin>('/api/plugins/install', { package_path: source })
+    : await apiClient.postBinary<ApiPlugin>('/api/plugins/install-zip', source)
+  return toPlugin(installed)
 }
 
 export async function enablePlugin(pluginId: string): Promise<Plugin> {

frontend/src/services/skillService.ts

@@ -27,8 +27,11 @@ export async function getSkill(skillId: string): Promise<Skill> {
   return toSkill(await apiClient.get<ApiSkill>(`/api/skills/${skillId}`))
 }
 
-export async function installSkill(packagePath: string): Promise<Skill> {
-  return toSkill(await apiClient.post<ApiSkill>('/api/skills/install', { package_path: packagePath }))
+export async function installSkill(source: string | File): Promise<Skill> {
+  const installed = typeof source === 'string'
+    ? await apiClient.post<ApiSkill>('/api/skills/install', { package_path: source })
+    : await apiClient.postBinary<ApiSkill>('/api/skills/install-zip', source)
+  return toSkill(installed)
 }
 
 export async function enableSkill(skillId: string): Promise<Skill> {