refactor: telegram + portfolio in-process (drop shared MCP)

Each bot now manages its own notification + portfolio aggregation:

* TelegramClient calls the public Bot API directly via httpx, reading
  CERBERO_BITE_TELEGRAM_BOT_TOKEN / CERBERO_BITE_TELEGRAM_CHAT_ID from
  env. No credentials → silent disabled mode.
* PortfolioClient composes DeribitClient + HyperliquidClient + the new
  MacroClient.get_asset_price/eur_usd_rate to expose equity (EUR) and
  per-asset exposure as the bot's own slice (no cross-bot view).
* mcp-telegram and mcp-portfolio removed from MCP_SERVICES / McpEndpoints
  and the cerbero-bite ping CLI; health_check no longer probes portfolio.

Docs (02/04/06/07) and docker-compose updated to reflect the new
architecture.

353/353 tests pass; ruff clean; mypy src clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/cerbero_bite/cli.py

@@ -26,7 +26,6 @@ from cerbero_bite.clients import HttpToolClient, McpError
 from cerbero_bite.clients.deribit import DeribitClient
 from cerbero_bite.clients.hyperliquid import HyperliquidClient
 from cerbero_bite.clients.macro import MacroClient
-from cerbero_bite.clients.portfolio import PortfolioClient
 from cerbero_bite.clients.sentiment import SentimentClient
 from cerbero_bite.config.loader import compute_config_hash, load_strategy
 from cerbero_bite.config.mcp_endpoints import (
@@ -560,12 +559,6 @@ async def _ping_one(
         if service == "hyperliquid":
             await HyperliquidClient(http).funding_rate_annualized("ETH")
             return "ok", "ETH-PERP reachable"
-        if service == "portfolio":
-            await PortfolioClient(http).total_equity_eur()
-            return "ok", "portfolio reachable"
-        if service == "telegram":
-            # Notify-only: no read tool. Skip without hitting the bot.
-            return "skipped", "notify-only client (no health probe)"
         return "skipped", "no probe defined"  # pragma: no cover
     except McpError as exc:
         return "fail", f"{type(exc).__name__}: {exc}"