feat: implement recommendation feedback and hidden repositories

db/migrations/0011_issue_feedback.sql

@@ -0,0 +1,30 @@
+CREATE TABLE hidden_repository (
+  id text PRIMARY KEY NOT NULL,
+  user_id text NOT NULL,
+  repository_full_name text NOT NULL,
+  created_at integer DEFAULT (cast(unixepoch('subsecond') * 1000 as integer)) NOT NULL,
+  FOREIGN KEY (user_id) REFERENCES user(id) ON UPDATE no action ON DELETE cascade
+);
+
+CREATE TABLE issue_feedback (
+  id text PRIMARY KEY NOT NULL,
+  user_id text NOT NULL,
+  repository_full_name text NOT NULL,
+  issue_number integer NOT NULL,
+  issue_url text NOT NULL,
+  reason text NOT NULL,
+  created_at integer DEFAULT (cast(unixepoch('subsecond') * 1000 as integer)) NOT NULL,
+  FOREIGN KEY (user_id) REFERENCES user(id) ON UPDATE no action ON DELETE cascade
+);
+
+CREATE UNIQUE INDEX hidden_repository_user_repo_uidx
+  ON hidden_repository (user_id, repository_full_name);
+
+CREATE INDEX hidden_repository_user_id_idx
+  ON hidden_repository (user_id);
+
+CREATE UNIQUE INDEX issue_feedback_user_repository_issue_uidx
+  ON issue_feedback (user_id, repository_full_name, issue_number);
+
+CREATE INDEX issue_feedback_user_id_idx
+  ON issue_feedback (user_id);