Fix sync: add missing tables, Linux date, token from env

Add production and consumption table migrations. Fix sync-month.sh
to use Linux date syntax and default to port 3030. Read Eloverblik
token from ELOVERBLIK_TOKEN env var with .token file fallback.
Mount .token into Docker container.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/clj/pmagnus/elprice/web/controllers/eloverblik.clj

@@ -31,7 +31,8 @@
 
 (defn- read-refresh-token
   []
-  (str/trim (slurp ".token")))
+  (or (System/getenv "ELOVERBLIK_TOKEN")
+      (str/trim (slurp ".token"))))
 
 
 (defn- get-access-token