feat: add pricing sync script and update model prices from OpenRouter (#27)

* fix: pin npm package versions in MCP integration templates

Prevent supply chain attacks by pinning exact versions instead of
using unpinned `npx -y @package` which pulls latest on every run.

23 of 25 integrations pinned. sqlite-mcp and aws skipped (packages
not found on npm registry).

* fix: use stable azure/mcp version instead of beta

* feat: add pricing sync script and update model prices from OpenRouter API

- scripts/sync-pricing.py fetches real-time pricing from OpenRouter
- Updated 64 price fields across 13 provider files
- Run periodically or in CI to keep prices current

providers/arcee-ai.toml

@@ -0,0 +1,78 @@
+# arcee-ai — auto-generated from OpenRouter API
+
+[provider]
+id = "arcee-ai"
+display_name = "Arcee Ai"
+api_key_env = "ARCEE_AI_API_KEY"
+base_url = ""
+key_required = true
+
+[[models]]
+id = "coder-large"
+display_name = "Arcee AI: Coder Large"
+tier = "smart"
+context_window = 32768
+max_output_tokens = 8192
+input_cost_per_m = 0.5
+output_cost_per_m = 0.8
+supports_streaming = true
+
+[[models]]
+id = "maestro-reasoning"
+display_name = "Arcee AI: Maestro Reasoning"
+tier = "smart"
+context_window = 131072
+max_output_tokens = 32000
+input_cost_per_m = 0.9
+output_cost_per_m = 3.3
+supports_streaming = true
+
+[[models]]
+id = "spotlight"
+display_name = "Arcee AI: Spotlight"
+tier = "fast"
+context_window = 131072
+max_output_tokens = 65537
+input_cost_per_m = 0.18
+output_cost_per_m = 0.18
+supports_streaming = true
+
+[[models]]
+id = "trinity-large-preview:free"
+display_name = "Arcee AI: Trinity Large Preview (free)"
+tier = "free"
+context_window = 131000
+max_output_tokens = 16384
+input_cost_per_m = 0.0
+output_cost_per_m = 0.0
+supports_streaming = true
+
+[[models]]
+id = "trinity-mini"
+display_name = "Arcee AI: Trinity Mini"
+tier = "fast"
+context_window = 131072
+max_output_tokens = 131072
+input_cost_per_m = 0.045
+output_cost_per_m = 0.15
+supports_streaming = true
+
+[[models]]
+id = "trinity-mini:free"
+display_name = "Arcee AI: Trinity Mini (free)"
+tier = "free"
+context_window = 131072
+max_output_tokens = 16384
+input_cost_per_m = 0.0
+output_cost_per_m = 0.0
+supports_streaming = true
+
+[[models]]
+id = "virtuoso-large"
+display_name = "Arcee AI: Virtuoso Large"
+tier = "smart"
+context_window = 131072
+max_output_tokens = 64000
+input_cost_per_m = 0.75
+output_cost_per_m = 1.2
+supports_streaming = true