v3.25.2: the TR tag-form alignment with TS 102 223 6.8.0/6.8.1

The TR's response objects are all Min = N in the spec's own table, and
6.8.0 says such objects "should set the CR flag to comprehension not
required" - so the builders now emit the base tag forms:

- device identities 82 -> 02 (every builder)
- PLI data 93/94/AD/AE/BF/E2/E5 -> 13/14/2D/2E/3F/62/65 (26/63 already
  base); the PWA inline codecs follow
- POLL INTERVAL Duration 84 -> 04
- GET INKEY/INPUT Text string 8D -> 0D
- SELECT ITEM Item identifier 90 -> 10
- Timer identifier/value A4/A5 -> 24/25
(_bip_tr already used the reference traces' 01/02/03.)

The command details now echo the command's tag form (01/81) besides
its qualifier - 6.8.1 requires the object to be identical to the
command's "including the comprehension required flag": the parser
returns cd_tag and _build_tr, _handle_timer_command,
_handle_bip_command, the menu pendings and testscript.build_tr carry
it.  The Result keeps 03/83 (Min = Y).  _tr_data_only strips both tag
styles and the POLL Duration decode accepts 04.

Tests: the base forms per builder + the echo + the PWA drift guards;
883 frontend + 866 Python; sw cache simple-v426.

tests/test_httpota.py

@@ -30,6 +30,9 @@ OPEN_LOCALHOST = bytes.fromhex(
 
 TR_OPEN_OK = '0103014001020282810301003802810035010339020200'
 TR_OPEN_FAIL = '01030140010202828103023a0035010339020200'
+# the same vector as sent by the handler: the command details echo the
+# command's tag form (the test raws use 81/82, TS 102 223 6.8.1)
+TR_OPEN_OK_ECHO = '8103014001020282810301003802810035010339020200'
 
 
 class PeerServer(threading.Thread):
@@ -314,13 +317,13 @@ class BipCommandFlowTest(unittest.TestCase):
 
     def test_open_send_receive_close_flow(self):
         tr = server._handle_bip_command(None, 1, 0x40, 0x01, open_cmd('127.0.0.1', self.peer.port), 0x81, 0x82)
-        self.assertEqual(tr.hex(), TR_OPEN_OK)
+        self.assertEqual(tr.hex(), TR_OPEN_OK_ECHO)
 
         tr = server._handle_bip_command(None, 1, 0x43, 0x01,
                                         channel_cmd(0x43, 0x01, bytes([0x36, 0x08]) + b'CLIENTHE'),
                                         0x81, 0x21)
         tlvs = parse_tr(tr)
-        self.assertEqual(tlvs[0x01].hex(), '014301')
+        self.assertEqual(tlvs[0x81].hex(), '014301')
         self.assertEqual(tlvs[0x02].hex(), '8281')
         self.assertEqual(tlvs[0x03], b'\x00')
         self.assertEqual(tlvs[0x37], b'\xff')
@@ -337,7 +340,7 @@ class BipCommandFlowTest(unittest.TestCase):
         self.assertEqual(tlvs[0x37], b'\x00')
 
         tr = server._handle_bip_command(None, 1, 0x41, 0x00, channel_cmd(0x41, 0x00), 0x81, 0x21)
-        self.assertEqual(tr.hex(), '010301410002028281030100')
+        self.assertEqual(tr.hex(), '810301410002028281030100')
         self.peer.done.wait(3)
         self.assertEqual(self.peer.received, b'CLIENTHE')