docs: normalize legacy plan names to current tiers

CREATE_QA_GITHUB_ISSUES.sh

@@ -174,7 +174,7 @@ jobs:
 
 **Time**: 2-3 hours
 **Complexity**: Low (straightforward API calls)
-**Blocker**: Need test API key with Production Boost access
+**Blocker**: Need test API key with Professional plan ($99/mo) access
 
 ## Success Metrics
 

README.md

@@ -535,7 +535,7 @@ prices = asyncio.run(get_prices())
 ## 📡 Real-Time WebSocket Streaming (New in v1.8.0)
 
 Stream live oil and energy prices over WebSocket instead of polling. Streaming
-is a **Professional / Reservoir Mastery** feature and is exposed through the
+is a **Professional plan ($99/mo) or higher** feature and is exposed through the
 async client via `client.stream`.
 
 Install the optional `stream` extra:

docs/index.md

@@ -210,9 +210,10 @@ Choose the plan that fits your needs:
 **[Start free →](https://oilpriceapi.com/auth/signup)**
 
 ### Paid Plans
-- **Exploration**: $15/month - 10,000 requests
-- **Production Boost**: $45/month - 50,000 requests
-- **Reservoir Mastery**: $129/month - 250,000 requests
+- **Developer**: $19/month - 10,000 requests
+- **Starter**: $49/month - 50,000 requests (adds webhooks)
+- **Professional**: $99/month - 100,000 requests (adds webhooks + WebSocket streaming)
+- **Scale**: $299/month - 1,000,000 requests
 
 **All plans include:**
 - ✅ Real-time price updates every 5 minutes

oilpriceapi/streaming/client.py

@@ -155,7 +155,7 @@ async def _subscribe(self) -> None:
             if msg_type == "reject_subscription":
                 raise ConnectionError(
                     "Subscription rejected — check your plan tier and API key "
-                    "(WebSocket streaming requires Reservoir Mastery)."
+                    "(WebSocket streaming requires the Professional plan ($99/mo) or higher)."
                 )
             # Ignore pings / pre-confirmation noise.