fix(infra): bootstrap_glitchtip — \gexec instead of DO block (psql var trap)

psql variables (:'gt_pass') are substituted client-side in the psql stream
but NOT inside dollar-quoted DO $$..$$ bodies — those are sent to the server
as literal text, causing syntax error. Replace DO block with \gexec pattern:
quote_literal(:'gt_pass') builds the CREATE ROLE statement client-side, then
\gexec executes it. WHERE NOT EXISTS makes both role and DB steps idempotent.
Also connect to 'postgres' db (not app db) for CREATE DATABASE to work.

scripts/bootstrap_glitchtip.sh

@@ -48,28 +48,27 @@ for i in $(seq 1 30); do
 done
 
 # ── Create glitchtip DB + user (idempotent) ────────────────────────────────
-# Password is passed via psql variable -v to avoid SQL injection from special
-# chars (quotes, backslashes) in $GLITCHTIP_DB_PASS.  format('%L', :'gt_pass')
-# properly quotes the value server-side, so the shell never interpolates it
-# into the SQL string.
+# psql var :'gt_pass' НЕ подставляется внутри DO $$..$$ — тело dollar-quote
+# уходит на сервер as-is. Используем \gexec в psql-стриме client-side.
+#
+# \gexec builds SQL client-side via quote_literal(:'gt_pass'), then executes it.
+# quote_literal escapes apostrophes and backslashes — no SQL injection possible.
+# If WHERE NOT EXISTS filters the row, \gexec receives no input → no-op, no error.
+# ON_ERROR_STOP=1 ensures \gexec-executed statements also cause psql to exit non-zero.
 echo "==> Creating glitchtip database and user (idempotent)..."
 $COMPOSE exec -T postgres \
-    psql -U "$POSTGRES_USER" -d "$POSTGRES_DB" \
-    -v "gt_pass=$GLITCHTIP_DB_PASS" \
-    -v ON_ERROR_STOP=on <<'SQL'
-DO $$
-BEGIN
-    IF NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = 'glitchtip') THEN
-        EXECUTE format('CREATE ROLE glitchtip LOGIN PASSWORD %L', :'gt_pass');
-        RAISE NOTICE 'Created role glitchtip';
-    ELSE
-        RAISE NOTICE 'Role glitchtip already exists';
-    END IF;
-END$$;
+    psql -U "$POSTGRES_USER" -d postgres \
+    -v ON_ERROR_STOP=1 \
+    -v "gt_pass=$GLITCHTIP_DB_PASS" <<'SQL'
+SELECT 'CREATE ROLE glitchtip LOGIN PASSWORD ' || quote_literal(:'gt_pass') || ';'
+WHERE NOT EXISTS (SELECT 1 FROM pg_roles WHERE rolname = 'glitchtip')
+\gexec
 
-SELECT 'CREATE DATABASE glitchtip OWNER glitchtip'
+SELECT 'CREATE DATABASE glitchtip OWNER glitchtip;'
 WHERE NOT EXISTS (SELECT 1 FROM pg_database WHERE datname = 'glitchtip')
 \gexec
+
+GRANT ALL PRIVILEGES ON DATABASE glitchtip TO glitchtip;
 SQL
 
 # ── Start GlitchTip containers ─────────────────────────────────────────────