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/tui.c

@@ -24,9 +24,9 @@
 #include "cst_tools.h"
 #include "cst_util.h"
 #include "cst_version.h"
-#include "cst_hermit_glyph.h"
 #include "os_compat.h"
 #include "sashidown.h"
+#include "cst_hermit_glyph.h"
 
 #include <locale.h>
 #include <pthread.h>
@@ -5467,7 +5467,7 @@ static void cmd_realm(tui_t *t, char *arg, int *quit) {
     if (cst_realm_dir(dir, sizeof(dir)) != 0 ||
         !cst_realm_is_password_mode(dir)) {
       push_system_line(t, "No password Realm yet. Outside TUI run:");
-      push_system_line(t, "  cst-agent --realm-password-init");
+      push_system_line(t, "  hermit --realm-password-init");
       return;
     }
     char pw[256];
@@ -5621,7 +5621,7 @@ static void cmd_status(tui_t *t, char *arg, int *quit) {
     }
     free(pst);
     if (cst_parliament_is_active() && !cst_parliament_session_ok(NULL, 0))
-      push_system_line(t, "  tip        cst-agent --login  (CST_REALM_PASSWORD)");
+      push_system_line(t, "  tip        hermit --login  (HERMIT_REALM_PASSWORD)");
   }
   cst_usage_t u;
   cst_agent_usage(t->agent, &u, NULL);
@@ -6363,7 +6363,7 @@ static void cmd_web(tui_t *t, char *arg, int *quit) {
   (void)arg;
   (void)quit;
 #ifdef _WIN32
-  push_system_line(t, "open another terminal and run: cst-agent --web");
+  push_system_line(t, "open another terminal and run: hermit --web");
 #else
   static pid_t spawned = 0;
   if (spawned > 0) {          /* collect the one we started last time */
@@ -6372,7 +6372,7 @@ static void cmd_web(tui_t *t, char *arg, int *quit) {
   }
   char dir[4096], exe[4096 + 16];
   if (os_exe_dir(dir, sizeof(dir)) != 0) {
-    push_system_line(t, "cannot locate this binary: run cst-agent --web yourself");
+    push_system_line(t, "cannot locate this binary: run hermit --web yourself");
     return;
   }
   snprintf(exe, sizeof(exe), "%s/cst-agent", dir);
@@ -7897,7 +7897,7 @@ int cst_tui_run(cst_agent_t *agent) {
   t.show_todo = 1;
   t.show_side = 1; /* Seat Deck; narrow terminals auto-hide in layout() */
   {
-    const char *mo = getenv("CST_ASCII_MOTION");
+    const char *mo = hermit_getenv("ASCII_MOTION");
     t.motion_on = !(mo && mo[0] == '0');
   }
   {