feat(base): default ImageUpload compression on

Flip ImageUploadOptions.compress so undefined/true → compress with
default knobs, false → skip, object → compress with merged knobs. A
future <ImageUpload> consumer that forgets the prop now gets safe
behavior (small WebP) instead of dumping a 5–8 MB phone photo to
pict-rs.

Drop the now-redundant :compress="true" from the events banner and
market product call sites. Profile keeps its object override since it
tunes maxWidthOrHeight: 512 / maxSizeMB: 0.2 for avatars.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/modules/activities/components/CreateEventDialog.vue

@@ -396,7 +396,6 @@ const handleOpenChange = (open: boolean) => {
               :show-primary-button="false"
               :disabled="isLoading"
               :allow-camera="true"
-              :compress="true"
               placeholder="Add a poster or banner"
             />
           </div>

src/modules/base/components/ImageUpload.vue

@@ -176,9 +176,10 @@ const props = defineProps<{
   placeholder?: string
   allowCamera?: boolean
   /**
-   * Client-side resize + re-encode before upload. Pass `true` for the
+   * Client-side resize + re-encode before upload. Default-on with the
-   * service defaults (1920px max edge, WebP, ~1MB target), or an object
+   * service defaults (1920px max edge, WebP, ~1MB target). Pass an
-   * to tune individual knobs.
+   * object to tune individual knobs, or `false` to upload the original
+   * untouched.
    */
   compress?: boolean | CompressOptions
 }>()

src/modules/base/services/ImageUploadService.ts

@@ -34,7 +34,9 @@ export interface ImageUploadOptions {
   maxSizeMB?: number
   acceptedTypes?: string[]
   generateThumbnail?: boolean
-  /** Enable client-side resize + re-encode before upload. */
+  /** Client-side resize + re-encode before upload. Default `true` with
+   *  default knobs (1920 px, WebP, ~1 MB). Pass an object to tune knobs
+   *  or `false` to upload the original untouched. */
   compress?: boolean | CompressOptions
 }
 
@@ -333,7 +335,9 @@ export class ImageUploadService extends BaseService {
    * JPEG if the browser can't encode WebP.
    */
   private async maybeCompress(file: File, options: ImageUploadOptions): Promise<File> {
-    if (!options.compress) return file
+    // Default-on: undefined / true → compress with default knobs;
+    // object → compress with merged knobs; false → skip entirely.
+    if (options.compress === false) return file
 
     const opts: Required<CompressOptions> = {
       ...DEFAULT_COMPRESS,

src/modules/market/components/CreateProductDialog.vue

@@ -136,7 +136,6 @@
               :show-primary-button="true"
               :disabled="isCreating"
               :allow-camera="true"
-              :compress="true"
               placeholder="Add product photos"
             />
             <FormMessage />