fix(telegram): fix claude client dispatch + strategy creation workflow

- telegram/bot.go: clientForProvider now returns NewClaudeClient() for
  'claude' provider (was incorrectly falling back to DeepSeekClient which
  uses OpenAI wire format, breaking Anthropic API calls)

- api/server.go: fix scan_interval_minutes schema default (3, not 60);
  POST /api/strategies now clearly states config is OPTIONAL with complete
  working defaults; POST /api/traders removes redundant GET workflow note

- telegram/agent/prompt.go: simplify strategy creation — just POST {name}
  without config (backend applies full working defaults automatically);
  only include config when user requests custom settings

api/server.go

@@ -157,8 +157,8 @@ func (s *Server) setupRoutes() {
 			s.route(protected, "GET", "/my-traders", "List user's traders with status", s.handleTraderList)
 			s.route(protected, "GET", "/traders/:id/config", "Get full trader configuration", s.handleGetTraderConfig)
 			s.routeWithSchema(protected, "POST", "/traders", "Create a new AI trader",
-				`Body: {"name":"<string, required>","ai_model_id":"<string, required — use ID from GET /api/models, must be enabled>","exchange_id":"<string, required — use ID from GET /api/exchanges, must be enabled>","strategy_id":"<string, optional — use ID from GET /api/strategies>","scan_interval_minutes":<int, default 60>}
-Workflow: 1) GET /api/exchanges to find enabled exchange ID 2) GET /api/models to find enabled model ID 3) GET /api/strategies to find strategy ID 4) POST with all IDs`,
+				`Body: {"name":"<string, required>","ai_model_id":"<string, required — use ID from GET /api/models, must be enabled>","exchange_id":"<string, required — use ID from GET /api/exchanges, must be enabled>","strategy_id":"<string, optional — use ID from GET /api/strategies>","scan_interval_minutes":<int, default 3, minimum 3>}
+Use exchange_id and ai_model_id from the Account State block injected at conversation start — no need to GET them again.`,
 				s.handleCreateTrader)
 			s.route(protected, "PUT", "/traders/:id", "Update trader configuration", s.handleUpdateTrader)
 			s.route(protected, "DELETE", "/traders/:id", "Delete trader", s.handleDeleteTrader)
@@ -211,7 +211,9 @@ Required fields by exchange:
 			s.route(protected, "POST", "/strategies/test-run", "Test-run strategy AI analysis", s.handleStrategyTestRun)
 			s.route(protected, "GET", "/strategies/:id", "Get strategy by ID", s.handleGetStrategy)
 			s.routeWithSchema(protected, "POST", "/strategies", "Create a new trading strategy",
-				`Body: {"name":"<string, required>","description":"<string, optional>","lang":"zh|en","config":<StrategyConfig object>}
+				`Body: {"name":"<string, required>","description":"<string, optional>","lang":"zh|en","config":<StrategyConfig object, OPTIONAL — if omitted the system applies complete working defaults automatically (ai500 top coins, all standard indicators, standard risk control)>}
+IMPORTANT: For most use cases just POST {"name":"<name>"} — the backend fills everything in. Only include "config" when the user explicitly requests custom settings (specific coins, custom leverage, custom timeframes).
+
 StrategyConfig fields:
   coin_source.source_type: "static"(fixed coin list) | "ai500"(AI top500 ranking) | "oi_top"(OI increasing, suited for long) | "oi_low"(OI decreasing, suited for short) | "mixed"
   coin_source.static_coins: ["BTCUSDT","ETHUSDT"] — only when source_type="static"

telegram/agent/prompt.go

@@ -65,21 +65,17 @@ Use this to:
 
 **Create strategy** (independent from traders):
 - Never GET trader info just to create a strategy.
-- If user specifies style + coins (e.g. "BTC trend"), build and POST immediately — no questions needed.
-- Build StrategyConfig intelligently from user's description:
-  - "trend" / "趋势" → enable EMA(20,50), MACD, RSI, multi-timeframe (15m,1h,4h), longer primary TF
-  - "scalping" / "短线" → enable RSI, ATR, shorter timeframes (1m,3m,5m)
-  - "conservative" / "保守" → lower leverage (2-3x), higher min confidence (80%%+)
-  - "BTC/ETH" → set coin_source.source_type="static", static_coins=["BTC/USDT"] or similar
-- After POST: GET /api/strategies/:id to verify → show user: name, coins, key indicators, leverage
+- POST {"name":"<descriptive name>"} — config is OPTIONAL. Backend applies complete working defaults automatically (ai500 top coins, all indicators, standard risk control). Strategy is immediately usable.
+- Only include "config" when user explicitly requests custom settings (specific coins, custom leverage, different timeframes).
+- After POST: GET /api/strategies/:id to verify → show user: name, coin_source.source_type, key risk_control values
 
 **"帮我配置策略并跑起来" / "create strategy and start" (full setup workflow)**:
 Execute these steps IN ORDER with NO user confirmation between them:
-1. POST /api/strategies — create strategy with config built from user's description
-2. GET /api/strategies/:id — verify strategy was saved correctly
-3. POST /api/traders — create trader: use exchange_id and model_id from Account State (if only one each, use directly); set strategy_id from step 1; set name like "BTC趋势" or similar
+1. POST /api/strategies — body: {"name":"<descriptive name>"} — no config needed, defaults are complete
+2. GET /api/strategies/:id — verify strategy was saved
+3. POST /api/traders — create trader: use exchange_id and model_id from Account State (if only one each, use directly); set strategy_id from step 1; set name matching the strategy
 4. POST /api/traders/:id/start — start the trader
-5. Final reply: show strategy name, trader name, key config (coins, leverage, indicators), confirm running
+5. Final reply: show strategy name, trader name, coin source, confirm running
 
 **Update strategy config**:
 1. GET /api/strategies/:id to read current full config

telegram/bot.go

@@ -254,9 +254,12 @@ func clientForProvider(provider string) mcp.AIClient {
 		return mcp.NewOpenAIClient()
 	case "deepseek":
 		return mcp.NewDeepSeekClient()
+	case "claude":
+		// Anthropic Messages API — different wire format (x-api-key, input_schema, tool_use blocks).
+		return mcp.NewClaudeClient()
 	default:
-		// Qwen, Kimi, Grok, Gemini, Claude, custom: fall back to DeepSeek-format client.
-		// These providers use OpenAI-compatible APIs; CustomAPIURL and CustomModelName are required.
+		// Qwen, Kimi, Grok, Gemini, custom: OpenAI-compatible APIs.
+		// CustomAPIURL and CustomModelName are required for these providers.
 		return mcp.NewDeepSeekClient()
 	}
 }