feat(init): add initial project scaffolding and database schema

- Add Dockerfile for multi-stage production build
- Add Drizzle configuration and initial migration for PostgreSQL schema
- Add project configuration files (.prettierrc, .prettierignore, .dockerignore)
- Define core database tables: assets, memberships, site_settings

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@@ -0,0 +1,17 @@
+error: unknown switch `P'
+usage: git rm [-f | --force] [-n] [-r] [--cached] [--ignore-unmatch]
+              [--quiet] [--pathspec-from-file=<file> [--pathspec-file-nul]]
+              [--] [<pathspec>...]
+
+    -n, --[no-]dry-run    dry run
+    -q, --[no-]quiet      do not list removed files
+    --[no-]cached         only remove from the index
+    -f, --[no-]force      override the up-to-date check
+    -r                    allow recursive removal
+    --[no-]ignore-unmatch exit with a zero status even if nothing matched
+    --[no-]sparse         allow updating entries outside of the sparse-checkout cone
+    --[no-]pathspec-from-file <file>
+                          read pathspec from file
+    --[no-]pathspec-file-nul
+                          with --pathspec-from-file, pathspec elements are separated with NUL character
+