Make gunicorn config environment-agnostic using os.getcwd()

Single config file now works for both production and staging by
deriving DIR and proc_name from the working directory. Re-enable
copying it in the deploy script since it's safe for all environments.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: vthorsteinsson

config/gunicorn_config.py

@@ -1,8 +1,11 @@
-# Gunicorn configuration file for greynir.is
+# Gunicorn configuration file for Greynir
+# Works for both production and staging — derives paths from working directory
 
-DIR = "/usr/share/nginx/greynir.is/"
+import os
+
+DIR = os.getcwd() + "/"
+proc_name = os.path.basename(os.getcwd())
 
-proc_name = "greynir.is"
 bind = "unix:" + DIR + "gunicorn.sock"
 worker_class = "eventlet"
 workers = 4
@@ -21,9 +24,6 @@
 
 # Remove the Greynir.grammar.bin file to ensure that
 # the grammar will be reparsed and a fresh copy generated
-
-import os
-
 try:
     os.remove(DIR + "Greynir.grammar.bin")
 except OSError: