fix: Docker DB init fails due to pg_restore error on existing database (#129)

pg_restore would fail because the dump contains CREATE DATABASE but
POSTGRES_DB already creates it. With set -e this aborted the script
before update/patch schemas could run.

- Allow pg_restore to continue past non-fatal errors
- Add --no-owner --no-acl to avoid permission mismatches
- Force LF line endings for .sh files via .gitattributes
- Quote file path variables in schema loops

.gitattributes

@@ -1,2 +1,5 @@
 # Auto detect text files and perform LF normalization
 * text=auto
+
+# Force LF for shell scripts (prevents CRLF breakage in Docker containers)
+*.sh text eol=lf