feat: avatars for humans (#273)

* implement avatar backend functionality

* add avatar endpoints

* typo

* implement client side avatar upload and handling

* fixes

* Update go/internal/handler/handler.go

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* Update js/desktop/src/lib/avatar-image.ts

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

* bug in order

* remove unused component

* fix invalid migration

* fix syntax errors

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

js/desktop/src/lib/humans.ts

@@ -13,6 +13,8 @@ export interface HumanDisplay {
   email: string;
   /** Initials for avatar fallback. */
   initials: string;
+  /** Avatar object id, when the human has a profile picture set. */
+  avatarObjectId: string | null;
 }
 
 /**
@@ -32,6 +34,7 @@ export function resolveHumanDisplay(
       displayName: REMOVED_MEMBER_LABEL,
       email: REMOVED_MEMBER_LABEL,
       initials: REMOVED_MEMBER_INITIALS,
+      avatarObjectId: null,
     };
   }
   return {
@@ -39,5 +42,6 @@ export function resolveHumanDisplay(
     displayName: human.email_prefix,
     email: human.email,
     initials: getInitials(human.email),
+    avatarObjectId: human.avatar_object_id ?? null,
   };
 }