fix: /local-workspace — chemin du header + clic sur un dossier du sidebar (v7.69.9)

Corrige deux régressions de /local-workspace :

- le chemin du header restait bloqué sur « Home / <workspace> » quel que
  soit le dossier affiché : la route rend désormais breadcrumb_items
  (Home / <workspace> / <dossier> / <sous-dossier>, niveaux cliquables,
  collapse « … » au-delà de 4) et la navigation sans rechargement recalcule
  le chemin via l'event flowdeck:breadcrumb-changed ;
- le clic sur un dossier du sidebar affichait TOUS les composants à la
  fois : Alpine.data('wsInitData') retournait le même objet singleton, le
  2e montage (navigation partielle) levait « Cannot redefine property:
  \ » et initTree abandonnait, laissant tout le contenu au state
  brut. La factory retourne désormais une enveloppe fraîche par montage
  qui délègue à l'état réactif partagé. #lw-config est aussi relu à chaque
  exécution (le 2e montage gardait le folder_id du 1er chargement).

Inclus également le travail en cours de l'arbre : Library (colonnes Last
visited/Source, ordre d'en-tête, favoris à icônes Workspace), Meeting
Notes (bloc, CSS, routes, docs), coloration de code hljs, badges
favori/publié dans l'arbre local-workspace, docs (DATA_MODEL,
architectures) et tests associés.

scripts/vendor_hljs.py

@@ -0,0 +1,113 @@
+"""Vendor highlight.js (common bundle + extra languages + themes) into static/.
+
+Run: python3 scripts/vendor_hljs.py
+Fetches from cdnjs 11.9.0 (pinned for stability) and writes:
+  static/js/highlight.min.js        (common bundle, ~40 languages)
+  static/js/highlight-extra.min.js  (extra languages concatenated)
+  static/css/highlight.css          (github light + github-dark scoped on [data-theme])
+"""
+import re
+import urllib.request
+
+VERSION = "11.9.0"
+BASE = f"https://cdnjs.cloudflare.com/ajax/libs/highlight.js/{VERSION}"
+
+COMMON_JS = f"{BASE}/highlight.min.js"
+LANG_URL = BASE + "/languages/{lang}.min.js"
+LIGHT_CSS = BASE + "/styles/github.min.css"
+DARK_CSS = BASE + "/styles/github-dark.min.css"
+
+# Extra languages NOT in the common bundle, covering a maximum of file types.
+# NOTE (verified 11.9.0): "fish", "toml" and "cobol" have NO standalone grammar
+# on cdnjs for this version — code-highlight.js maps them to the closest
+# bundled grammar (fish→shell, toml→ini, cobol→plaintext).
+EXTRA_LANGS = [
+    # shells / ops
+    "powershell", "dos", "fish",
+    # build / containers / config
+    "dockerfile", "cmake", "toml", "graphql", "protobuf", "thrift",
+    # web servers / protocols (absent du bundle common cdnjs 11.9.0)
+    "apache", "http", "nginx",
+    # JVM / functional / misc popular
+    "scala", "groovy", "haskell", "elixir", "erlang", "clojure",
+    "ocaml", "fsharp", "nim", "d", "julia", "matlab",
+    "dart", "latex", "vim", "awk", "delphi",
+    # asm / hdl / legacy
+    "armasm", "x86asm", "vhdl", "verilog", "ada", "fortran", "cobol",
+    "gcode", "stata", "stan",
+]
+
+
+def fetch(url: str) -> str:
+    req = urllib.request.Request(url, headers={"User-Agent": "FlowDeck-vendor/1.0"})
+    with urllib.request.urlopen(req, timeout=30) as r:
+        return r.read().decode("utf-8", "replace")
+
+
+def scope_css(css: str, scope: str) -> str:
+    """Prefix every rule whose selector mentions .hljs with the theme scope."""
+    out = []
+    for chunk in css.split("}"):
+        if "{" not in chunk:
+            out.append(chunk)
+            continue
+        selectors, body = chunk.split("{", 1)
+        parts = []
+        for sel in selectors.split(","):
+            sel = sel.strip()
+            if not sel:
+                continue
+            if ".hljs" in sel:
+                parts.append(f"{scope} {sel}")
+            else:
+                parts.append(sel)
+        out.append(", ".join(parts) + "{" + body)
+    return "}".join(out)
+
+
+def main() -> None:
+    from pathlib import Path
+
+    root = Path(__file__).resolve().parent.parent
+    js_dir = root / "static" / "js"
+    css_dir = root / "static" / "css"
+
+    common = fetch(COMMON_JS)
+    (js_dir / "highlight.min.js").write_text(common, encoding="utf-8")
+    print(f"highlight.min.js: {len(common)} bytes")
+
+    extra_parts = []
+    missing = []
+    for lang in EXTRA_LANGS:
+        try:
+            code = fetch(LANG_URL.format(lang=lang))
+            extra_parts.append(f"\n/* hljs lang: {lang} */\n" + code)
+            print(f"  + {lang}: {len(code)} bytes")
+        except Exception as exc:  # noqa: BLE001
+            missing.append(lang)
+            print(f"  ! {lang} missing: {exc}")
+    (js_dir / "highlight-extra.min.js").write_text(
+        "/* FlowDeck — highlight.js extra languages (cdnjs %s) */\n" % VERSION
+        + "\n".join(extra_parts),
+        encoding="utf-8",
+    )
+
+    light = fetch(LIGHT_CSS)
+    dark = fetch(DARK_CSS)
+    css = (
+        "/* FlowDeck — highlight.js themes (cdnjs %s): github (light) + "
+        "github-dark scoped on html[data-theme=\"dark\"] */\n" % VERSION
+        + light
+        + "\n"
+        + scope_css(dark, 'html[data-theme="dark"]')
+        + "\n/* FlowDeck tweaks: keep code blocks integrated with app surfaces */\n"
+        + ".hljs{background:transparent;}\n"
+    )
+    (css_dir / "highlight.css").write_text(css, encoding="utf-8")
+    print(f"highlight.css: {len(css)} bytes")
+    if missing:
+        print("MISSING:", missing)
+
+
+if __name__ == "__main__":
+    main()