release 1.18.9: FP domains default UI language fr globally

Workstation TALER_MON_LANG=en no longer locks English on *lefrancpaysan*;
only --lang / TALER_MON_LANG_SET=1 overrides. host-agent + HTML chrome.

site-gen/console_to_html.py

@@ -45,15 +45,35 @@ def atomic_write_text(path: Path, text: str, encoding: str = "utf-8") -> None:
             except OSError:
                 pass
 
-def ui_lang(explicit: str = "") -> str:
-    """en (default) or fr. Env: TALER_MON_LANG; auto fr for lefrancpaysan hosts."""
+def ui_lang(explicit: str = "", host_hint: str = "") -> str:
+    """en (default) or fr.
+
+    - TALER_MON_LANG_SET=1 → honour TALER_MON_LANG / explicit only (no host auto).
+    - Else: any *lefrancpaysan* / *francpaysan* host or log hint → fr
+      (workstation env TALER_MON_LANG=en must not force English on FP domains).
+    - Else: explicit / env / en.
+    """
     import os
-    lang = (explicit or os.environ.get("TALER_MON_LANG") or "").strip().lower()
-    if lang in ("fr", "fra", "french"):
+
+    env_lang = (os.environ.get("TALER_MON_LANG") or "").strip().lower()
+    lang = (explicit or env_lang or "").strip().lower()
+    locked = (os.environ.get("TALER_MON_LANG_SET") or "").strip() == "1"
+    is_fp = bool(
+        re.search(r"lefrancpaysan|francpaysan", host_hint or "", re.I)
+    )
+
+    def _norm(v: str) -> str:
+        if v in ("fr", "fra", "french"):
+            return "fr"
+        if v in ("en", "eng", "english"):
+            return "en"
+        return ""
+
+    if locked:
+        return _norm(lang) or "en"
+    if is_fp:
         return "fr"
-    if lang in ("en", "eng", "english"):
-        return "en"
-    return "en"
+    return _norm(lang) or "en"
 
 
 def ui(lang: str, key: str, **kwargs) -> str:
@@ -709,11 +729,9 @@ def monitoring_scope(
     label = (page_label or "monitoring").lower().replace("_", "-")
     phases = extract_phases(log_text)
     host = hostname or "?"
-    # Auto-fr for FrancPaysan hosts if lang not forced
-    if lang == "en" and re.search(r"lefrancpaysan|francpaysan", host + " " + log_text, re.I):
-        import os
-        if not (os.environ.get("TALER_MON_LANG") or "").strip():
-            lang = "fr"
+    # Resolve lang again with host/log hint (*lefrancpaysan* → fr unless LANG_SET=1)
+    _ex = lang if lang in ("en", "fr") else ""
+    lang = ui_lang(explicit=_ex, host_hint=host + " " + log_text)
 
     if "surface" in label:
         items = [
@@ -1079,10 +1097,7 @@ def sticky_bar_html(
     if scope and scope.get("lang"):
         lang = str(scope.get("lang"))
     else:
-        lang = ui_lang()
-        # auto-fr for FP hostnames
-        if lang == "en" and re.search(r"lefrancpaysan|francpaysan", hostname or "", re.I):
-            lang = "fr"
+        lang = ui_lang(host_hint=hostname or "")
 
     if level == "red":
         status_txt = ui(lang, "errors")
@@ -1990,12 +2005,7 @@ def build_html(
         page_label or ""
     ).lower()
     if _is_apt:
-        _lang_board = ui_lang()
-        if re.search(r"lefrancpaysan|francpaysan", hostname + "\n" + log_text, re.I):
-            import os
-
-            if not (os.environ.get("TALER_MON_LANG") or "").strip():
-                _lang_board = "fr"
+        _lang_board = ui_lang(host_hint=hostname + "\n" + log_text)
         err_nav += aptdeploy_board_html(log_text, lang=_lang_board)
 
     if errors and mode == "err":
@@ -2040,11 +2050,7 @@ def build_html(
 
     first_err_href = "#first-error" if first_err_i is not None else None
     first_warn_href = "#first-warn" if first_warn_i is not None else None
-    lang = ui_lang()
-    if re.search(r"lefrancpaysan|francpaysan", hostname + "\n" + log_text, re.I):
-        import os
-        if not (os.environ.get("TALER_MON_LANG") or "").strip():
-            lang = "fr"
+    lang = ui_lang(host_hint=hostname + "\n" + log_text)
     scope = monitoring_scope(page_label, hostname, log_text, lang=lang)
 
     page_lang = lang