revert: restore pre-upstream-merge baseline (tree of 3b673150b)

Roll the tree back to the pre-merge tip 3b673150b, undoing the upstream sync merge 72f4f186d (303 files) and the 13 post-merge commits layered on top of it.

Purpose: restore the last pre-sync baseline so the reported OMEMO/OTR encryption regressions can be reproduced against a known-good state and the upstream sync ruled in or out as the cause. Nothing is dropped from history; the merge and every post-merge commit remain reachable and can be cherry-picked back selectively.

Baseline:     3b673150b chore(chatlog): disable background message file logging (stage 1)

Undoes merge: 72f4f186d merge: sync upstream profanity-im/profanity

tests/unittests/test_muc.c

@@ -0,0 +1,87 @@
+#include "prof_cmocka.h"
+#include <stdlib.h>
+
+#include "xmpp/muc.h"
+
+void prof_shutdown(void);
+
+int
+muc_before_test(void** state)
+{
+    muc_init();
+    return 0;
+}
+
+int
+muc_after_test(void** state)
+{
+    prof_shutdown();
+    return 0;
+}
+
+void
+test_muc_invites_add(void** state)
+{
+    char* room = "room@conf.server";
+    muc_invites_add(room, NULL);
+
+    gboolean invite_exists = muc_invites_contain(room);
+
+    assert_true(invite_exists);
+}
+
+void
+test_muc_remove_invite(void** state)
+{
+    char* room = "room@conf.server";
+    muc_invites_add(room, NULL);
+    muc_invites_remove(room);
+
+    gboolean invite_exists = muc_invites_contain(room);
+
+    assert_false(invite_exists);
+}
+
+void
+test_muc_invites_count_0(void** state)
+{
+    int invite_count = muc_invites_count();
+
+    assert_true(invite_count == 0);
+}
+
+void
+test_muc_invites_count_5(void** state)
+{
+    muc_invites_add("room1@conf.server", NULL);
+    muc_invites_add("room2@conf.server", NULL);
+    muc_invites_add("room3@conf.server", NULL);
+    muc_invites_add("room4@conf.server", NULL);
+    muc_invites_add("room5@conf.server", NULL);
+
+    int invite_count = muc_invites_count();
+
+    assert_true(invite_count == 5);
+}
+
+void
+test_muc_room_is_not_active(void** state)
+{
+    char* room = "room@server.org";
+
+    gboolean room_is_active = muc_active(room);
+
+    assert_false(room_is_active);
+}
+
+void
+test_muc_active(void** state)
+{
+    char* room = "room@server.org";
+    char* nick = "bob";
+    muc_join(room, nick, NULL, FALSE);
+
+    gboolean room_is_active = muc_active(room);
+
+    assert_true(room_is_active);
+}