diff --git a/README.md b/README.md
index d7d07e8..9f3cd6e 100644
--- a/README.md
+++ b/README.md
@@ -326,7 +326,7 @@ The fastest way to get QuantDinger running.
 ```bash
 git clone https://github.com/brokermr810/QuantDinger.git && \
 cd QuantDinger && \
-cp docker.env.example backend_api_python/.env && \
+cp backend_api_python/env.example backend_api_python/.env && \
 docker-compose up -d --build
 ```
 
@@ -334,7 +334,7 @@ docker-compose up -d --build
 ```powershell
 git clone https://github.com/brokermr810/QuantDinger.git
 cd QuantDinger
-Copy-Item docker.env.example -Destination backend_api_python\.env
+Copy-Item backend_api_python\env.example -Destination backend_api_python\.env
 docker-compose up -d --build
 ```
 
diff --git a/README_CN.md b/README_CN.md
index 7546e5f..a5454a3 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -365,7 +365,7 @@ QuantDinger 为全球用户构建，提供全面的国际化支持：
 ```bash
 git clone https://github.com/brokermr810/QuantDinger.git && \
 cd QuantDinger && \
-cp docker.env.example backend_api_python/.env && \
+cp backend_api_python/env.example backend_api_python/.env && \
 docker-compose up -d --build
 ```
 
@@ -373,7 +373,7 @@ docker-compose up -d --build
 ```powershell
 git clone https://github.com/brokermr810/QuantDinger.git
 cd QuantDinger
-Copy-Item docker.env.example -Destination backend_api_python\.env
+Copy-Item backend_api_python\env.example -Destination backend_api_python\.env
 docker-compose up -d --build
 ```
 
diff --git a/README_JA.md b/README_JA.md
index 415397f..03eb8e7 100644
--- a/README_JA.md
+++ b/README_JA.md
@@ -321,7 +321,7 @@ QuantDingerを実行する最速の方法です。
 ```bash
 git clone https://github.com/brokermr810/QuantDinger.git && \
 cd QuantDinger && \
-cp docker.env.example backend_api_python/.env && \
+cp backend_api_python/env.example backend_api_python/.env && \
 docker-compose up -d --build
 ```
 
@@ -329,7 +329,7 @@ docker-compose up -d --build
 ```powershell
 git clone https://github.com/brokermr810/QuantDinger.git
 cd QuantDinger
-Copy-Item docker.env.example -Destination backend_api_python\.env
+Copy-Item backend_api_python\env.example -Destination backend_api_python\.env
 docker-compose up -d --build
 ```
 
diff --git a/README_KO.md b/README_KO.md
index 0704ef3..d85cc6a 100644
--- a/README_KO.md
+++ b/README_KO.md
@@ -334,7 +334,7 @@ QuantDinger를 실행하는 가장 빠른 방법입니다.
 ```bash
 git clone https://github.com/brokermr810/QuantDinger.git && \
 cd QuantDinger && \
-cp docker.env.example backend_api_python/.env && \
+cp backend_api_python/env.example backend_api_python/.env && \
 docker-compose up -d --build
 ```
 
@@ -342,7 +342,7 @@ docker-compose up -d --build
 ```powershell
 git clone https://github.com/brokermr810/QuantDinger.git
 cd QuantDinger
-Copy-Item docker.env.example -Destination backend_api_python\.env
+Copy-Item backend_api_python\env.example -Destination backend_api_python\.env
 docker-compose up -d --build
 ```
 
diff --git a/README_TW.md b/README_TW.md
index fdd96e4..c2a8069 100644
--- a/README_TW.md
+++ b/README_TW.md
@@ -335,7 +335,7 @@ QuantDinger 為全球用戶構建，提供全面的國際化支持：
 ```bash
 git clone https://github.com/brokermr810/QuantDinger.git && \
 cd QuantDinger && \
-cp docker.env.example backend_api_python/.env && \
+cp backend_api_python/env.example backend_api_python/.env && \
 docker-compose up -d --build
 ```
 
@@ -343,7 +343,7 @@ docker-compose up -d --build
 ```powershell
 git clone https://github.com/brokermr810/QuantDinger.git
 cd QuantDinger
-Copy-Item docker.env.example -Destination backend_api_python\.env
+Copy-Item backend_api_python\env.example -Destination backend_api_python\.env
 docker-compose up -d --build
 ```
 
diff --git a/backend_api_python/env.example b/backend_api_python/env.example
index 60bda7a..251fa15 100644
--- a/backend_api_python/env.example
+++ b/backend_api_python/env.example
@@ -82,7 +82,7 @@ PRICE_CACHE_TTL_SEC=10
 # =========================
 # If you use a local proxy (common ports: 7890/7891/10808), set PROXY_PORT only.
 # Default scheme is socks5h and host is 127.0.0.1.
-# If run docker the PROXY_HOST use : host.docker.internal
+# For Docker deployment: set PROXY_HOST=host.docker.internal to access host's proxy
 PROXY_PORT=
 PROXY_HOST=127.0.0.1
 PROXY_SCHEME=socks5h
diff --git a/docker.env.example b/docker.env.example
deleted file mode 100644
index 0d11fa5..0000000
--- a/docker.env.example
+++ /dev/null
@@ -1,79 +0,0 @@
-# QuantDinger Docker Environment Configuration
-# Copy this file to .env and modify the settings
-# cp docker.env.example backend_api_python/.env
-
-# =========================
-# Authentication
-# =========================
-SECRET_KEY=quantdinger-secret-key-change-me
-ADMIN_USER=quantdinger
-ADMIN_PASSWORD=123456
-
-# =========================
-# Network Configuration
-# =========================
-PYTHON_API_HOST=0.0.0.0
-PYTHON_API_PORT=5000
-PYTHON_API_DEBUG=False
-CORS_ORIGINS=*
-
-# =========================
-# OpenRouter / LLM (Required for AI analysis)
-# =========================
-OPENROUTER_API_KEY=your-openrouter-api-key
-OPENROUTER_API_URL=https://openrouter.ai/api/v1/chat/completions
-OPENROUTER_MODEL=openai/gpt-4o
-OPENROUTER_TEMPERATURE=0.7
-OPENROUTER_MAX_TOKENS=4000
-OPENROUTER_TIMEOUT=300
-
-# =========================
-# Data Source API Keys (fill as needed)
-# =========================
-# Finnhub (US stocks / forex)
-FINNHUB_API_KEY=
-
-# Tiingo (optional backup data source)
-TIINGO_API_KEY=
-
-# =========================
-# Notification Settings (optional)
-# =========================
-# Telegram
-TELEGRAM_BOT_TOKEN=
-
-# Email / SMTP
-SMTP_HOST=
-SMTP_PORT=587
-SMTP_USER=
-SMTP_PASSWORD=
-SMTP_FROM=
-
-# Twilio SMS
-TWILIO_ACCOUNT_SID=
-TWILIO_AUTH_TOKEN=
-TWILIO_FROM_NUMBER=
-
-# Webhook
-SIGNAL_WEBHOOK_URL=
-SIGNAL_WEBHOOK_TOKEN=
-
-# =========================
-# Strategy Execution Settings
-# =========================
-ENABLE_PENDING_ORDER_WORKER=true
-STRATEGY_TICK_INTERVAL_SEC=10
-
-# =========================
-# Search Engine (optional, for AI analysis)
-# =========================
-SEARCH_PROVIDER=google
-SEARCH_GOOGLE_API_KEY=
-SEARCH_GOOGLE_CX=
-
-# =========================
-# Proxy Configuration (if network requires)
-# =========================
-PROXY_PORT=
-PROXY_HOST=127.0.0.1
-PROXY_SCHEME=socks5h