lint: Ensure non-dev templates entrypoint name doesn't start with dev.

Only development-related templates entrypoint name
should start with `dev`.

templates/zerver/development/email_log.html

@@ -1,5 +1,5 @@
 {% extends "zerver/base.html" %}
-{% set entrypoint = "email-log" %}
+{% set entrypoint = "dev-email-log" %}
 {% block content %}
 <div class="container">
     <div style="position: fixed">

templates/zerver/development/integrations_dev_panel.html

@@ -1,5 +1,5 @@
 {% extends "zerver/portico.html" %}
-{% set entrypoint = "integrations-dev-panel" %}
+{% set entrypoint = "dev-integrations-panel" %}
 
 {% block customhead %}
 

tools/linter_lib/custom_check.py

@@ -754,6 +754,11 @@ jinja2_rules = RuleList(
             "pattern": r"{{ _(.+) }}[\.\?!]",
             "description": "Period should be part of the translatable string.",
         },
+        {
+            "pattern": r'{% set entrypoint = "dev-',
+            "exclude": {"templates/zerver/development/"},
+            "description": "Development entrypoints (dev-) must not be imported in production.",
+        },
     ],
 )
 

tools/webpack.assets.json

@@ -90,14 +90,14 @@
     "dev-login": ["./static/js/bundles/portico", "./static/js/portico/dev-login"],
     "desktop-login": ["./static/js/bundles/portico", "./static/js/portico/desktop-login"],
     "desktop-redirect": ["./static/js/bundles/portico", "./static/js/portico/desktop-redirect"],
-    "integrations-dev-panel": [
+    "dev-integrations-panel": [
         "./static/js/bundles/portico",
         "./static/js/portico/integrations_dev_panel",
         "./static/styles/portico/integrations_dev_panel.css",
         "./static/js/reload_state",
         "./static/js/channel"
     ],
-    "email-log": [
+    "dev-email-log": [
         "./static/js/bundles/common",
         "./static/js/portico/email_log",
         "./static/js/reload_state",