fix: correct invalid tier "free" and teams-mcp id with version (#29)

- Replace tier "free" with "fast" (valid tiers: frontier/smart/balanced/fast/local)
- Remove version suffix from teams-mcp integration id field
- Update sync-pricing.py to not generate invalid tier values

providers/meta-llama.toml

@@ -80,7 +80,7 @@ supports_streaming = true
 [[models]]
 id = "llama-3.2-3b-instruct:free"
 display_name = "Meta: Llama 3.2 3B Instruct (free)"
-tier = "free"
+tier = "fast"
 context_window = 131072
 max_output_tokens = 16384
 input_cost_per_m = 0.0
@@ -100,7 +100,7 @@ supports_streaming = true
 [[models]]
 id = "llama-3.3-70b-instruct:free"
 display_name = "Meta: Llama 3.3 70B Instruct (free)"
-tier = "free"
+tier = "fast"
 context_window = 65536
 max_output_tokens = 16384
 input_cost_per_m = 0.0