feat: better APIs; WIP timeline support

migrations/20250410112325_add_follow.sql

@@ -1,7 +1,7 @@
 CREATE TABLE IF NOT EXISTS follow
 (
-    -- Activity ID
-    id TEXT PRIMARY KEY NOT NULL,
+	-- Activity ID
+	id TEXT PRIMARY KEY NOT NULL,
 	follower_id TEXT NOT NULL,
 	followed_id TEXT NOT NULL,
 	FOREIGN KEY(follower_id) REFERENCES actor(id),

migrations/20250410121119_add_user.sql

@@ -3,7 +3,7 @@ CREATE TABLE IF NOT EXISTS user
 	-- UUID
 	id TEXT PRIMARY KEY NOT NULL,
 	username TEXT NOT NULL,
-	actor_id TEXT NOT NULL,
+	actor_id TEXT NOT NULL UNIQUE,
 	display_name TEXT NOT NULL,
 
 	FOREIGN KEY(actor_id) REFERENCES actor(id)

migrations/20250410182845_add_post.sql

@@ -1,9 +1,10 @@
 CREATE TABLE IF NOT EXISTS post
 (
 	-- Uri
-    id TEXT PRIMARY KEY NOT NULL,
+	id TEXT PRIMARY KEY NOT NULL,
 	user_id TEXT NOT NULL,
 	content TEXT NOT NULL,
+	created_at TEXT NOT NULL,
 
 	FOREIGN KEY(user_id) REFERENCES user(id)
 );

migrations/20250411125138_add_activity.sql

@@ -0,0 +1,10 @@
+CREATE TABLE IF NOT EXISTS activity
+(
+	-- UUID
+	id TEXT PRIMARY KEY NOT NULL,
+  ty TEXT NOT NULL,
+  actor_id TEXT NOT NULL,
+
+	FOREIGN KEY(actor_id) REFERENCES actor(id)
+);
+