startup: cardless start is a normal state, not an init failure (v2.2.17)

- __main__ catches NoCardError from the startup init (fast and stock paths,
  and the stock fallback) and reports it with one line - 'INIT: no card in
  the reader - server ready; insert a card or press Equip' - without a
  traceback and without the stock-pysim fallback. Any other init failure
  still falls back with its traceback.
- The cardless PysimApp construction no longer prints pySim's 'Waiting for
  card...' or pySim-shell's 'pySim-shell not equipped!': a new _LineFilter
  (server.py) drops whole matching lines while proxying encoding/isatty/
  fileno (the cmd2 Rich console probes them on its stdout).
- Removed the now-duplicate 'INIT: card not initialized' tail line and the
  cat_cla assignment when no card was detected (scc exists but is cardless).
- Tests: tests/test_startup_cardless.py (line filter semantics incl. partial
  lines, one-line cardless report, no fallback call, real failures keep the
  fallback + traceback, muted PysimApp construction). Live-verified against
  an empty SCR 3310: two init lines, no traceback, API serves 2.2.17.
- Docs: READMEs quick start, help EN+RU (Card reader), AGENTS (equip flow).
  SW cache otaman-v184.

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pysim-otaman-server"
-version = "2.2.16"
+version = "2.2.17"
 description = "HTTP REST server wrapping pysim for the OTAMan PWA"
 requires-python = ">=3.8"
 # pysim is a git-only dependency installed explicitly by setup.bat/setup.sh.