Force every LLM stage onto DeepSeek and stop Anthropic Console uploads.

PROVIDER_*=anthropic and Claude fallbacks now coerce to DeepSeek, skills stay local, and default_model_version bumps without upload_skills.py.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/services/extraction.py

@@ -5,8 +5,7 @@ Ports the extraction steps from run_pipeline.py to async:
   - extract_pattern: Passive MPN pattern
   - extract_specs: Component specs (discrete, connectors, crystals, etc.)
 
-Skills (SKILL.md + validate.py) run locally for DeepSeek/Gemini. Anthropic
-can still use Console Skills when a skill_id is in skills_manifest.json.
+Skills (SKILL.md + validate.py) run locally against DeepSeek. Do not use Anthropic Console Skills.
 """
 
 from __future__ import annotations

backend/services/llm/factory.py

@@ -24,8 +24,9 @@ def get_provider_by_name(name: str) -> LLMProvider:
         from backend.services.llm.deepseek_provider import DeepSeekProvider
         return DeepSeekProvider()
     if name == "anthropic":
-        from backend.services.llm.anthropic_provider import AnthropicProvider
-        return AnthropicProvider()
+        log.warning("Anthropic is disabled — using DeepSeek instead")
+        from backend.services.llm.deepseek_provider import DeepSeekProvider
+        return DeepSeekProvider()
     if name == "gemini":
         from backend.services.llm.gemini_provider import GeminiProvider
         return GeminiProvider()