feat: add Token Plan quota query for Kimi, Zhipu GLM, and MiniMax

Add a new "Token Plan" template type in the usage query panel that
natively queries quota/usage from Chinese coding plan providers
(Kimi For Coding, Zhipu GLM, MiniMax) without requiring custom scripts.

- Rust backend: new coding_plan service with provider-specific API
  queries (Kimi /v1/usages, Zhipu /api/monitor/usage/quota/limit,
  MiniMax /coding_plan/remains) normalized into UsageResult
- Frontend: Token Plan template in UsageScriptModal with auto-detection
  of provider based on ANTHROPIC_BASE_URL pattern matching
- Follows the same pattern as GitHub Copilot template (dedicated API
  path in queryProviderUsage, no JS script needed)

src-tauri/src/lib.rs

@@ -892,6 +892,7 @@ pub fn run() {
             commands::testUsageScript,
             // subscription quota
             commands::get_subscription_quota,
+            commands::get_coding_plan_quota,
             // New MCP via config.json (SSOT)
             commands::get_mcp_config,
             commands::upsert_mcp_server_in_config,