perf(functests): speedup — profrc pre-baking, pty-close shutdown, parallel port pools

Replace 16 interactive UI setup commands with pre-written profrc file
containing [ui] and [notifications] sections (~1800ms saved per test).

Replace sleep(1) + blocking waitpid with close(pty fd) → SIGHUP →
polling waitpid(WNOHANG) → SIGTERM/SIGKILL fallback chain (~4900ms
saved per test).

Remove post-stbbr_start() and post-stbbr_stop() sleeps — bind+listen
completes synchronously before stbbr_start() returns, and
pthread_join() in stbbr_stop() guarantees socket cleanup (~200ms saved).

Add PORTS_PER_GROUP=50 isolated port ranges per test group to enable
safe parallel execution of 4 groups without port conflicts.

tests/functionaltests/proftest.c

@@ -184,6 +184,12 @@ _cleanup_dirs(void)
     }
 }
 
+static void
+sleep_ms(int ms)
+{
+    usleep(ms * MS_TO_US);
+}
+
 /*
  * Read available data from fd into output_buffer with timeout.
  * Returns number of bytes read, 0 on timeout, -1 on error.
@@ -263,7 +269,7 @@ prof_start(void)
     fcntl(fd, F_SETFL, flags | O_NONBLOCK);
     
     /* Brief wait for process to initialize */
-    usleep(INIT_WAIT_MS * MS_TO_US);
+    sleep_ms(INIT_WAIT_MS);
 }
 
 int
@@ -279,7 +285,7 @@ init_prof_test(void **state)
     
     /* Calculate port base: each build uses a different range of
      * TEST_GROUPS * PORTS_PER_GROUP ports.
-     * Build 0 (local/default): BASE_PORT..+199, Full: same, Minimal: +200, etc.
+     * Build 0 (local/default): 5230-5429, Full: 5230-5429, Minimal: 5430-5629, etc.
      * Build 0 and Full share the same range because build 0 is for local runs
      * or sequential run (no parallel builds), while Full/Minimal/NoEncrypt/Default
      * are used in CI where they run in parallel. */
@@ -388,7 +394,7 @@ close_prof_test(void **state)
         /* Close pty master after brief grace — child gets SIGHUP which
          * accelerates shutdown instead of waiting for XMPP disconnect
          * timeout (~5s). */
-        usleep(QUIT_GRACE_MS * MS_TO_US);
+        sleep_ms(QUIT_GRACE_MS);
         close(fd);
         fd = 0;
         int exited = 0;
@@ -397,13 +403,13 @@ close_prof_test(void **state)
                 exited = 1;
                 break;
             }
-            usleep(SHUTDOWN_POLL_MS * MS_TO_US);
+            sleep_ms(SHUTDOWN_POLL_MS);
         }
         if (!exited) {
             kill(child_pid, SIGTERM);
             for (int i = 0; i < SIGTERM_POLL_MAX; i++) {
                 if (waitpid(child_pid, NULL, WNOHANG) != 0) { exited = 1; break; }
-                usleep(SHUTDOWN_POLL_MS * MS_TO_US);
+                sleep_ms(SHUTDOWN_POLL_MS);
             }
             if (!exited) {
                 kill(child_pid, SIGKILL);
@@ -434,7 +440,7 @@ prof_input(const char *input)
     g_string_free(inp_str, TRUE);
     
     /* Small delay to let profanity process input */
-    usleep(INPUT_DELAY_MS * MS_TO_US);
+    sleep_ms(INPUT_DELAY_MS);
 }
 
 /*
@@ -457,7 +463,7 @@ prof_output_exact(const char *text)
             return 1;
         }
         
-        usleep(OUTPUT_POLL_MS * MS_TO_US);
+        sleep_ms(OUTPUT_POLL_MS);
     }
     
     return 0;
@@ -493,7 +499,7 @@ prof_output_regex(const char *pattern)
             return 1;
         }
         
-        usleep(OUTPUT_POLL_MS * MS_TO_US);
+        sleep_ms(OUTPUT_POLL_MS);
     }
     
     /* Timeout reached - log diagnostic info */