add: some user api and all api desc

desc/sql/community/comment_likes.sql

@@ -0,0 +1,9 @@
+CREATE TABLE comment_likes (
+                               comment_id BIGINT NOT NULL,
+                               user_id BIGINT NOT NULL,
+                               created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+
+                               PRIMARY KEY (comment_id, user_id)
+);
+
+CREATE INDEX idx_comment_likes_lookup ON comment_likes(user_id, comment_id);