v0.48.0 — пробинг ELM327, трехуровневый профиль, рефакторинг obd/

- obd/probe.py: трехуровневый каскад (L0/L1/L2)
- obd/commands.py: каталог всех AT-команд с метаданными
- obd/classifier.py: классификация ответов + определение уровня
- obd/connection.py: транспортный слой (SerialTransport)
- obd/protocol.py: init() только база, без ATAT1/ATST
- api/db.py: таблица device_profiles по BT MAC
- api/scripts.py: три уровня скриптов (l0/l1/l2)
- api/routes.py: /elm/probe, /elm/profile/<mac>, /script?level=
- web/templates/index.html: v0.48.0
- CHANGELOG.md, doc/architecture.md, resume.txt: версии

api/db.py

@@ -1,15 +1,11 @@
-"""SQLite — сохранение сессий диагностики.
+"""SQLite — сохранение сессий диагностики + профили ELM-устройств.
 
 Таблица sessions (35+ колонок):
-  client_ip, real_ip, user_agent, content_length, created_at
-  phone_model, phone_maker, android_version, android_sdk, app_version
-  android_id, device_uuid, phone_lang, phone_tz, phone_display
-  elm_mac, elm_bt_name, obd_protocol
-  vin, dtc_count, pid_count
-  duration_ms, response_count, error_count, retry_count, timeout_count
-  script_mode, transport, mock_mode, car_info
-  diagnosis_text, diagnosis_len, llm_model, llm_duration_ms, llm_success
-  raw_responses, request_id, response_json
+  ... (см. ниже)
+
+Таблица device_profiles:
+  mac (TEXT PK), level (INT), elm_version, elm_desc, protocol,
+  supported (JSON), unsupported (JSON), first_seen, last_seen
 """
 
 import json
@@ -108,6 +104,22 @@ class Database:
             CREATE INDEX IF NOT EXISTS idx_sessions_aid        ON sessions(android_id);
             CREATE INDEX IF NOT EXISTS idx_sessions_request_id ON sessions(request_id);
             CREATE INDEX IF NOT EXISTS idx_sessions_uuid       ON sessions(device_uuid);
+
+            -- Профили ELM-устройств (по BT MAC)
+            CREATE TABLE IF NOT EXISTS device_profiles (
+                mac             TEXT PRIMARY KEY,   -- BT MAC-адрес
+                level           INTEGER NOT NULL,   -- 0/1/2 (-1 = нерабочее)
+                elm_version     TEXT,               -- ATI ответ
+                elm_desc        TEXT,               -- AT@1 (если есть)
+                protocol        TEXT,               -- ATDPN
+                voltage         TEXT,               -- ATRV
+                supported       TEXT,               -- JSON: ["ATE0","ATL0",...]
+                unsupported     TEXT,               -- JSON: ["ATAT1",...]
+                errors          TEXT,               -- JSON: ["ATCFC1: no response",...]
+                first_seen      TEXT NOT NULL DEFAULT (datetime('now')),
+                last_seen       TEXT NOT NULL DEFAULT (datetime('now'))
+            );
+            CREATE INDEX IF NOT EXISTS idx_profiles_level ON device_profiles(level);
         """)
         self.conn.commit()
 
@@ -221,3 +233,52 @@ class Database:
         ))
         self.conn.commit()
 
+    # ── device_profiles ──────────────────────────────────
+
+    def get_device_profile(self, mac: str) -> dict | None:
+        """Возвращает сохранённый профиль устройства по MAC, или None."""
+        row = self.conn.execute(
+            "SELECT * FROM device_profiles WHERE mac = ?", (mac,)
+        ).fetchone()
+        if not row:
+            return None
+        p = dict(row)
+        for f in ("supported", "unsupported", "errors"):
+            p[f] = json.loads(p[f]) if p.get(f) else []
+        return p
+
+    def save_device_profile(self, mac: str, profile: dict):
+        """Сохраняет или обновляет профиль устройства.
+
+        profile — результат obd.probe.probe().
+        """
+        now = datetime.now(timezone.utc).isoformat()
+        self.conn.execute("""
+            INSERT INTO device_profiles
+                (mac, level, elm_version, elm_desc, protocol, voltage,
+                 supported, unsupported, errors, first_seen, last_seen)
+            VALUES (?,?,?,?,?,?, ?,?,?, ?,?)
+            ON CONFLICT(mac) DO UPDATE SET
+                level       = excluded.level,
+                elm_version = excluded.elm_version,
+                elm_desc    = excluded.elm_desc,
+                protocol    = excluded.protocol,
+                voltage     = excluded.voltage,
+                supported   = excluded.supported,
+                unsupported = excluded.unsupported,
+                errors      = excluded.errors,
+                last_seen   = excluded.last_seen
+        """, (
+            mac,
+            profile.get("level", -1),
+            profile.get("elm_version"),
+            profile.get("elm_desc"),
+            profile.get("protocol"),
+            profile.get("voltage"),
+            json.dumps(profile.get("supported", []), ensure_ascii=False),
+            json.dumps(profile.get("unsupported", []), ensure_ascii=False),
+            json.dumps(profile.get("errors", []), ensure_ascii=False),
+            now, now,
+        ))
+        self.conn.commit()
+