fix: require auth for webconsole profile endpoints

[Zach1113]

Fix WebConsole profile endpoint authentication free5gc/free5gc#1072

Problem:

• Several WebConsole profile endpoints allowed unauthenticated read, update, and delete operations on provisioning profiles.
• GetProfile, PutProfile, DeleteProfile, and DeleteMultipleProfiles did not validate the Token header, while related profile endpoints already did.

Fix:

• Added a shared profile auth helper using the existing JWT parsing behavior.
• Applied the helper to profile get, create, update, and delete handlers.