feat(frontend): rename inj roles to sys-front-*, add sys-svc-cdn, cache-busting lookup

Introduce sys-svc-cdn (cdn_paths/cdn_urls/cdn_dirs) and ensure CDN directories + latest symlink.

Rename sys-srv-web-inj-* → sys-front-inj-*; update includes/templates; serve shared/per-app CSS & JS via CDN.

Add lookup_plugins/local_mtime_qs.py for mtime-based cache busting; split CSS into default.css/bootstrap.css + optional per-app style.css.

CSP: use style-src-elem; drop unsafe-inline for styles. Services: fix SYS_SERVICE_ALL_ENABLED bool and controlled flush.

BREAKING CHANGE: role names changed; replace includes and references accordingly.

Conversation: https://chatgpt.com/share/68b55494-9ec4-800f-b559-44707029141d

lookup_plugins/local_mtime_qs.py

@@ -0,0 +1,53 @@
+from __future__ import annotations
+from ansible.plugins.lookup import LookupBase
+from ansible.errors import AnsibleError
+import os
+
+class LookupModule(LookupBase):
+    """
+    Return a cache-busting string based on the LOCAL file's mtime.
+
+    Usage (single path → string via Jinja):
+      {{ lookup('local_mtime_qs', '/path/to/file.css') }}
+      -> "?version=1712323456"
+
+    Options:
+      param (str): query parameter name (default: "version")
+      mode  (str): "qs" (default) → returns "?<param>=<mtime>"
+                   "epoch"        → returns "<mtime>"
+
+    Multiple paths (returns list, one result per term):
+      {{ lookup('local_mtime_qs', '/a.js', '/b.js', param='v') }}
+    """
+
+    def run(self, terms, variables=None, **kwargs):
+        if not terms:
+            return []
+
+        param = kwargs.get('param', 'version')
+        mode  = kwargs.get('mode', 'qs')
+
+        if mode not in ('qs', 'epoch'):
+            raise AnsibleError("local_mtime_qs: 'mode' must be 'qs' or 'epoch'")
+
+        results = []
+        for term in terms:
+            path = os.path.abspath(os.path.expanduser(str(term)))
+
+            # Fail fast if path is missing or not a regular file
+            if not os.path.exists(path):
+                raise AnsibleError(f"local_mtime_qs: file does not exist: {path}")
+            if not os.path.isfile(path):
+                raise AnsibleError(f"local_mtime_qs: not a regular file: {path}")
+
+            try:
+                mtime = int(os.stat(path).st_mtime)
+            except OSError as e:
+                raise AnsibleError(f"local_mtime_qs: cannot stat '{path}': {e}")
+
+            if mode == 'qs':
+                results.append(f"?{param}={mtime}")
+            else:  # mode == 'epoch'
+                results.append(str(mtime))
+
+        return results