feat: sync AI compose and ChatBot features

deploy/migrations/0046_ai_compose.up.sql

@@ -0,0 +1,38 @@
+CREATE TABLE IF NOT EXISTS ai_compose_tones (
+  id BIGINT PRIMARY KEY,
+  access_hash BIGINT NOT NULL,
+  owner_user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+  slug TEXT NOT NULL UNIQUE,
+  title TEXT NOT NULL,
+  emoji_id BIGINT NOT NULL DEFAULT 0,
+  prompt TEXT NOT NULL,
+  display_author BOOLEAN NOT NULL DEFAULT FALSE,
+  installs_count INTEGER NOT NULL DEFAULT 0,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+  updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+  CHECK (id > 0),
+  CHECK (access_hash <> 0),
+  CHECK (owner_user_id > 0),
+  CHECK (slug <> ''),
+  CHECK (title <> ''),
+  CHECK (prompt <> ''),
+  CHECK (char_length(title) <= 12),
+  CHECK (char_length(prompt) <= 1024),
+  CHECK (installs_count >= 0)
+);
+
+CREATE UNIQUE INDEX IF NOT EXISTS ai_compose_tones_access_hash_idx
+  ON ai_compose_tones(id, access_hash);
+
+CREATE INDEX IF NOT EXISTS ai_compose_tones_owner_updated_idx
+  ON ai_compose_tones(owner_user_id, updated_at DESC, id);
+
+CREATE TABLE IF NOT EXISTS ai_compose_tone_saves (
+  user_id BIGINT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+  tone_id BIGINT NOT NULL REFERENCES ai_compose_tones(id) ON DELETE CASCADE,
+  saved_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+  PRIMARY KEY (user_id, tone_id)
+);
+
+CREATE INDEX IF NOT EXISTS ai_compose_tone_saves_user_saved_idx
+  ON ai_compose_tone_saves(user_id, saved_at, tone_id);