feat: Hermit 1.1.0 — HERMIT_* env, Tauri desktop shell

Wire hermit_getenv across the engine, rebrand WebUI/systemd/docs, and
add apps/desktop (Tauri 2 + React) with a DeepSeek-Harness-like UI.
Qt app/ is frozen; full libcstcore FFI is scaffolded behind --features engine.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/hermit_glyph.c

@@ -6,18 +6,8 @@
 #include <stdlib.h>
 #include <string.h>
 
-const char *hermit_getenv(const char *suffix) {
-  char hk[96], ck[96];
-  if (!suffix || !suffix[0])
-    return "";
-  snprintf(hk, sizeof(hk), "HERMIT_%s", suffix);
-  const char *e = getenv(hk);
-  if (e && e[0])
-    return e;
-  snprintf(ck, sizeof(ck), "CST_%s", suffix);
-  e = getenv(ck);
-  return e ? e : "";
-}
+/* hermit_getenv lives in os_compat.c so light test binaries that link
+ * os_compat without hermit_glyph still resolve HERMIT_/CST_ dual env. */
 
 static int file_ok(const char *path) {
   os_stat_t st;