fix(gitea): use .RunModeIsProd and hardcode Umami values in header template

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

gitea/.env.example

@@ -3,5 +3,3 @@ NETWORK_NAME=falcon_network
 RUNNER_TOKEN=change_me
 EMAIL_FROM=gitea@pivoine.art
 EMAIL_USER=Gitea
-UMAMI_SRC=https://umami.example.com/script.js
-UMAMI_ID=

gitea/compose.yml

@@ -36,8 +36,6 @@ services:
       GITEA__ui__THEMES: gitea-auto,gitea-light,gitea-dark,arc-green,edge-auto,edge-dark,edge-light,everforest-auto,everforest-dark,everforest-light,gruvbox-auto,gruvbox-dark,gruvbox-light,gruvbox-material-auto,gruvbox-material-dark,gruvbox-material-light,nord,palenight,soft-era,sonokai,sonokai-andromeda,sonokai-atlantis,sonokai-espresso,sonokai-maia,sonokai-shusia
       GITEA__ui__DEFAULT_THEME: nord
       GITEA__ui__ENABLE_FEED: "true"
-      UMAMI_SRC: ${UMAMI_SRC}
-      UMAMI_ID: ${UMAMI_ID}
     ports:
       - "2222:2222"
     volumes:

gitea/templates/custom/header.tmpl

@@ -1,3 +1,3 @@
-{{if and (eq .RunMode "prod") (not .IsSigned)}}
-<script defer src="{{env "UMAMI_SRC"}}" data-website-id="{{env "UMAMI_ID"}}"></script>
+{{if and .RunModeIsProd (not .IsSigned)}}
+<script defer src="https://umami.pivoine.art/script.js" data-website-id="eee7e810-116b-408a-a46d-f51dcec217c2"></script>
 {{end}}