Rewrite config docs and add validated example files

examples/production-config.yml

@@ -0,0 +1,41 @@
+version: 1
+pipeline:
+  modules: [glossary, homophones, glossary, spoken_word, grammar]
+output:
+  schema: audita-v1
+llm:
+  proposal:
+    base_url: https://openrouter.ai/api/v1
+    model: openrouter/google/gemma-4-31b-it
+    api_key_env: AUDITA_LLM_API_KEY
+    timeout: 120s
+    max_retries: 3
+  validation:
+    base_url: https://openrouter.ai/api/v1
+    model: openrouter/google/gemma-4-31b-it
+    api_key_env: AUDITA_VALIDATION_LLM_API_KEY
+    timeout: 120
+    max_retries: 3
+concurrency:
+  total_llm: 2
+  proposal_llm: 2
+  validation_llm: 1
+chunking:
+  target_sections: 8
+  max_section_tokens: 8192
+  min_section_tokens: 2048
+normalization:
+  max_segment_gap: 4s
+  ellipsis_gap: 3.5s
+  max_segment_duration: 60s
+  max_segment_tokens: 2048
+thresholds:
+  glossary: 0.8
+  homophones: 0.8
+  spoken_word: 0.8
+  grammar: 0.8
+context:
+  description: "General context for domain vocabulary and speaker names."
+diagnostics:
+  work_dir: /tmp/audita
+  retention: auto