intitial docker impl

.env.example

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+# Port
+PORT=8000
+
+# Auth dir
+CHATGPT_LOCAL_HOME=/data
+
+# show request/stream logs
+VERBOSE=false
+
+# OAuth client id (modify only if you know what you're doing)
+# CHATGPT_LOCAL_CLIENT_ID=app_EMoamEEZ73f0CkXaXp7hrann
+
+# Reasoning controls
+CHATGPT_LOCAL_REASONING_EFFORT=medium       # minimal|low|medium|high
+CHATGPT_LOCAL_REASONING_SUMMARY=auto        # auto|concise|detailed|none
+CHATGPT_LOCAL_REASONING_COMPAT=think-tags   # legacy|o3|think-tags|current
+
+# Force a specific model name
+# CHATGPT_LOCAL_DEBUG_MODEL=gpt-5