feat: Database Schema Creation

[RafaDSan]

Necessary to have done the task #3
Initial thought of the entities schemas:

User

	address (primary key)
	role (enum: user, manager, owner)
	created_at

Community

	id/address (coming from blockchain)
	name (coming from blockchain)
	description (coming from blockchain)
	creator_address
	status (active/hidden)
	total_members (coming from blockchain / indexing through db)
	total_badges (coming from blockchain +  indexing through db)

Badges

	 id (from blockchain)
	 community_id (foreign key)
	 type (predefined/custom)
	 name (indexed from blockchain)
	 score_value (indexed from blockchain)
	 status (active/inactive) - when user "deletes" badges

CommunityMember

	 community_id (foreign key)
	 user_address (foreign key)
	 joined_at
	 delete when a user leaves

[RafaDSan]

P1 as the schemas are a necessary element in the data relationship between the platforms