chore: add devcontainer setup and branch policy update

.devcontainer/.gitignore

@@ -0,0 +1,8 @@
+# DevContainer data
+data-node/
+meili_data*/
+pgdata/
+*.log
+*.tmp
+.env
+

.devcontainer/Dockerfile

@@ -1,3 +1,41 @@
+# LibreChat DevContainer Dockerfile
+FROM node:20-alpine
+
+# Install system dependencies
+RUN apk add --no-cache \
+    git \
+    python3 \
+    py3-pip \
+    make \
+    g++ \
+    jemalloc \
+    bash \
+    curl \
+    openssh-client \
+    sudo
+
+# Set environment variable to use jemalloc
+ENV LD_PRELOAD=/usr/lib/libjemalloc.so.2
+
+# Create app directory
+WORKDIR /workspaces
+
+# Set npm configuration for better reliability
+RUN npm config set fetch-retry-maxtimeout 600000 && \
+    npm config set fetch-retries 5 && \
+    npm config set fetch-retry-mintimeout 15000
+
+# Create vscode user with sudo privileges
+RUN addgroup -g 1000 vscode && \
+    adduser -u 1000 -G vscode -s /bin/bash -D vscode && \
+    echo "vscode ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers && \
+    chown -R vscode:vscode /workspaces
+
+# Switch to vscode user
+USER vscode
+
+# Default command keeps container running
+CMD ["/bin/sh", "-c", "while sleep 1000; do :; done"]
 FROM node:18-bullseye
 
 RUN useradd -m -s /bin/bash vscode

.devcontainer/README.md

@@ -0,0 +1,22 @@
+# LibreChat DevContainer (簡易セットアップ)
+
+## 使い方
+1. VS Codeで開く → コマンドパレット「Dev Containers: Reopen in Container」
+2. 初回ビルド完了後、自動で `.devcontainer/post-create.sh` が走り、依存インストールとビルドを実施
+3. ルートに `.env` が無い場合、自動でテンプレートから作成されます
+4. 起動:
+   - バックエンド: `npm run backend:dev`
+   - フロント: `cd client && npm run dev -- --host --port 3000`
+5. ブラウザで `http://localhost:3000` を表示
+
+## 環境変数
+- `.devcontainer/env.template` を `.env` にコピーし、必要に応じて修正
+- 最低限: `PORT=3080`, `MONGO_URI=mongodb://mongodb:27017/LibreChat`
+
+## 同梱サービス
+- MongoDB (27017), Meilisearch (7700), PostgreSQL/pgvector (5432), RAG API (8000)
+
+## トラブルシュート
+- `librechat.yaml` が無いと警告が出ます。必要に応じてルートに配置してください。
+- RAG API のDB接続エラーが出る場合は、`.env` の Postgres 資格情報と `docker-compose.yml` の `vectordb` 設定を揃えてください。
+

.devcontainer/devcontainer.json

@@ -1,3 +1,60 @@
+{
+  "name": "LibreChat Dev",
+  "dockerComposeFile": "docker-compose.yml",
+  "service": "app",
+  "workspaceFolder": "/workspaces",
+  "shutdownAction": "stopCompose",
+
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "dbaeumer.vscode-eslint",
+        "esbenp.prettier-vscode",
+        "bradlc.vscode-tailwindcss",
+        "ms-playwright.playwright",
+        "ms-vscode.vscode-typescript-next",
+        "orta.vscode-jest",
+        "eamodio.gitlens",
+        "ms-azuretools.vscode-docker"
+      ],
+      "settings": {
+        "editor.defaultFormatter": "esbenp.prettier-vscode",
+        "editor.formatOnSave": true,
+        "editor.codeActionsOnSave": {
+          "source.fixAll.eslint": "explicit"
+        },
+        "typescript.tsdk": "node_modules/typescript/lib",
+        "typescript.enablePromptUseWorkspaceTsdk": true,
+        "files.eol": "\n",
+        "files.trimTrailingWhitespace": true,
+        "files.insertFinalNewline": true
+      }
+    }
+  },
+
+  "forwardPorts": [3080, 3000, 27017, 7700, 5432, 8000],
+  "portsAttributes": {
+    "3080": { "label": "LibreChat API", "onAutoForward": "notify" },
+    "3000": { "label": "LibreChat Client (Dev)", "onAutoForward": "notify" },
+    "27017": { "label": "MongoDB", "onAutoForward": "silent" },
+    "7700": { "label": "Meilisearch", "onAutoForward": "silent" },
+    "5432": { "label": "PostgreSQL (VectorDB)", "onAutoForward": "silent" },
+    "8000": { "label": "RAG API", "onAutoForward": "silent" }
+  },
+
+  "postCreateCommand": "bash .devcontainer/post-create.sh",
+  "postStartCommand": "echo 'DevContainer started. docker-compose services are available.'",
+
+  "remoteUser": "vscode",
+  "remoteEnv": {
+    "NODE_ENV": "development"
+  },
+
+  "features": {
+    "ghcr.io/devcontainers/features/git:1": {},
+    "ghcr.io/devcontainers/features/github-cli:1": {}
+  }
+}
 {
   "dockerComposeFile": "docker-compose.yml",
   "service": "app",

.devcontainer/docker-compose.yml

@@ -1,3 +1,112 @@
+version: '3.8'
+
+services:
+  app:
+    build:
+      context: ..
+      dockerfile: .devcontainer/Dockerfile
+    restart: unless-stopped
+    depends_on:
+      - mongodb
+      - meilisearch
+      - vectordb
+      - rag_api
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    volumes:
+      - ..:/workspaces:cached
+      - node_modules:/workspaces/node_modules
+      - api_node_modules:/workspaces/api/node_modules
+      - client_node_modules:/workspaces/client/node_modules
+      - packages_api_node_modules:/workspaces/packages/api/node_modules
+      - packages_client_node_modules:/workspaces/packages/client/node_modules
+      - packages_data_provider_node_modules:/workspaces/packages/data-provider/node_modules
+      - packages_data_schemas_node_modules:/workspaces/packages/data-schemas/node_modules
+    environment:
+      - HOST=0.0.0.0
+      - NODE_ENV=development
+      - MONGO_URI=mongodb://mongodb:27017/LibreChat
+      - MEILI_HOST=http://meilisearch:7700
+      - RAG_API_URL=http://rag_api:8000
+    user: vscode
+    command: /bin/sh -c "while sleep 1000; do :; done"
+    networks:
+      - librechat-network
+
+  mongodb:
+    container_name: chat-mongodb
+    image: mongo:latest
+    restart: unless-stopped
+    expose:
+      - 27017
+    volumes:
+      - ./data-node:/data/db
+    command: mongod --noauth
+    networks:
+      - librechat-network
+
+  meilisearch:
+    container_name: chat-meilisearch
+    image: getmeili/meilisearch:v1.12.3
+    restart: unless-stopped
+    expose:
+      - 7700
+    environment:
+      - MEILI_HOST=http://meilisearch:7700
+      - MEILI_NO_ANALYTICS=true
+      - MEILI_MASTER_KEY=${MEILI_MASTER_KEY:-dev-meili-key}
+    volumes:
+      - ./meili_data_v1.12:/meili_data
+    networks:
+      - librechat-network
+
+  vectordb:
+    container_name: vectordb
+    image: pgvector/pgvector:0.8.0-pg15-trixie
+    restart: unless-stopped
+    expose:
+      - 5432
+    environment:
+      POSTGRES_DB: mydatabase
+      POSTGRES_USER: myuser
+      POSTGRES_PASSWORD: mypassword
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+    networks:
+      - librechat-network
+
+  rag_api:
+    container_name: rag_api
+    image: ghcr.io/danny-avila/librechat-rag-api-dev-lite:latest
+    restart: unless-stopped
+    expose:
+      - 8000
+    environment:
+      - DB_HOST=vectordb
+      - RAG_PORT=8000
+      - POSTGRES_DB=mydatabase
+      - POSTGRES_USER=myuser
+      - POSTGRES_PASSWORD=mypassword
+    depends_on:
+      - vectordb
+    networks:
+      - librechat-network
+    env_file:
+      - ../.env
+
+volumes:
+  pgdata:
+  node_modules:
+  api_node_modules:
+  client_node_modules:
+  packages_api_node_modules:
+  packages_client_node_modules:
+  packages_data_provider_node_modules:
+  packages_data_schemas_node_modules:
+
+networks:
+  librechat-network:
+    driver: bridge
 services:
   app:
     build:

.devcontainer/env.template

@@ -0,0 +1,47 @@
+# LibreChat DevContainer Environment Variables (development)
+# Copy to project root as .env and adjust as needed.
+
+# Basic
+HOST=0.0.0.0
+PORT=3080
+NODE_ENV=development
+
+# Databases
+MONGO_URI=mongodb://mongodb:27017/LibreChat
+DATABASE_URL=postgresql://myuser:mypassword@vectordb:5432/mydatabase
+POSTGRES_DB=mydatabase
+POSTGRES_USER=myuser
+POSTGRES_PASSWORD=mypassword
+
+# Security (change for production)
+JWT_SECRET=dev_jwt_secret_change_me
+JWT_REFRESH_SECRET=dev_jwt_refresh_secret_change_me
+CREDS_KEY=dev_creds_key_change_me
+CREDS_IV=dev_creds_iv_16chars
+
+# Search
+MEILI_HOST=http://meilisearch:7700
+MEILI_MASTER_KEY=dev-meili-key
+
+# RAG API
+RAG_PORT=8000
+RAG_API_URL=http://rag_api:8000
+
+# Auth defaults
+ALLOW_EMAIL_LOGIN=true
+ALLOW_REGISTRATION=true
+ALLOW_SOCIAL_LOGIN=false
+ALLOW_SOCIAL_REGISTRATION=false
+
+# Dev
+NO_INDEX=true
+TRUST_PROXY=0
+DEBUG=false
+
+# Optional API keys
+# OPENAI_API_KEY=
+# ANTHROPIC_API_KEY=
+# GOOGLE_API_KEY=
+# AWS_ACCESS_KEY_ID=
+# AWS_SECRET_ACCESS_KEY=
+

.devcontainer/post-create.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+set -e
+
+echo "🚀 post-create: install & build"
+
+if [ ! -f "/workspaces/.env" ] && [ -f "/workspaces/.devcontainer/env.template" ]; then
+  cp /workspaces/.devcontainer/env.template /workspaces/.env
+  echo "✓ .env created from template"
+fi
+
+cd /workspaces
+
+echo "📦 npm install"
+npm install
+
+echo "🔨 build packages"
+npm run build:data-provider || true
+npm run build:data-schemas || true
+npm run build:api || true
+
+echo "🎭 playwright deps (optional)"
+npx playwright install --with-deps || true
+
+echo "✅ post-create done"
+

.github/CONTRIBUTING.md

@@ -59,13 +59,29 @@ Project maintainers have the right and responsibility to remove, edit, or reject
 
 ## 3. Git Workflow
 
-We utilize a GitFlow workflow to manage changes to this project's codebase. Follow these general steps when contributing code:
-
-1. Fork the repository and create a new branch with a descriptive slash-based name (e.g., `new/feature/x`).
-2. Implement your changes and ensure that all tests pass.
-3. Commit your changes using conventional commit messages with GitFlow flags. Begin the commit message with a tag indicating the change type, such as "feat" (new feature), "fix" (bug fix), "docs" (documentation), or "refactor" (code refactoring), followed by a brief summary of the changes (e.g., `feat: Add new feature X to the project`).
-4. Submit a pull request with a clear and concise description of your changes and the reasons behind them.
-5. We will review your pull request, provide feedback as needed, and eventually merge the approved changes into the main branch.
+We follow a simplified GitFlow with a small set of long-lived branches and environment configs kept in the repository (instead of environment-specific branches).
+
+### Branch roles
+- `main`: release / production (protected)
+- `develop`: integration for upcoming releases
+- `feature/*`: topic work merged into `develop`
+- `hotfix/*`: urgent fixes starting from `main`, merged back into `main` and `develop`
+- `release/*` (optional): stabilize before tagging, then merge to `main` and `develop`
+- `upstream` (remote): tracks the source repository for rebases/sync
+
+### Environment configuration
+- Keep environment-specific files in the repo instead of creating infra-specific branches:
+  - `.devcontainer/` for DevContainer
+  - `docker-compose*.yml` for local containers
+  - `deploy/` (e.g., `deploy/aws/`, `deploy/railway/`) for cloud manifests/IaC
+- Switch targets via CI/CD variables/secrets (no plaintext secrets in the repo).
+
+### Typical contribution flow
+1. Fork and branch from `develop` (or `main` for hotfixes), e.g., `feature/your-change`.
+2. Implement and ensure tests pass.
+3. Use conventional commits (`feat`, `fix`, `docs`, `chore`, etc.): e.g., `feat: add new feature X`.
+4. Open a PR with a clear description and test notes.
+5. After review, we merge to `develop` (or `main` for hotfixes/release).
 
 ## 4. Commit Message Format
 
@@ -113,7 +129,7 @@ Ensure that your changes meet the following criteria:
 
 Apply the following naming conventions to branches, labels, and other Git-related entities:
 
-- **Branch names:** Descriptive and slash-based (e.g., `new/feature/x`).
+- **Branch names:** Descriptive and slash-based (e.g., `feature/xyz`, `hotfix/issue-123`, `release/1.2.0`).
 - **Labels:** Descriptive and kebab case (e.g., `bug-fix`).
 - **JS/TS:** Directories and file names: Descriptive and camelCase. First letter uppercased for React files (e.g., `helperFunction.ts, ReactComponent.tsx`).
 - **Docs:** Directories and file names: Descriptive and snake_case (e.g., `config_files.md`).

AGENT_RULES.md

@@ -0,0 +1,21 @@
+# Agent Behavioral Guidelines / Code of Conduct
+
+These guidelines are established to prevent unnecessary code modifications and ensure accurate implementation planning, based on retrospective analysis of past tasks.
+
+## 1. Code-First Analysis (Fact-Checking)
+*   **Principle**: Do not rely solely on visual observation of static samples or user descriptions.
+*   **Action**: Before planning changes, deeply analyze the **existing component code** (React components, Logic, CSS) and **render output**.
+*   **Why**: To identify what is already implemented (e.g., dynamic text, existing styling loops) versus what is actually missing.
+
+## 2. Evidence-Based Gap Analysis
+*   **Principle**: "Different until proven same" is dangerous. Assume "Potentially same" and verify.
+*   **Action**: Explicitly list the **discrepancies** between the "Target Design/Behavior" and the "Current Implementation".
+*   **Rule**: Only create tasks for items present in the "Target" but PROVEN missing in the "Current".
+
+## 3. Respect Existing Architecture
+*   **Principle**: Leveraging existing mechanisms (i18n, ThemeContext) is better than hardcoding.
+*   **Action**: Check `client/src/locales`, `client/src/hooks`, and logical wrappers (like `StartupLayout`) before overriding content.
+*   **Why**: To maintain maintainability and consistency (e.g., Dark Mode support, Multi-language support).
+
+## Revision History
+- **2025-12-09**: Added initial rules following "Login Page Customization" task where redundant text/style changes were initially proposed.

client/src/components/Chat/Landing.tsx

@@ -171,6 +171,9 @@ export default function Landing({ centerFormOnLanding }: { centerFormOnLanding:
               </TooltipAnchor>
             )}
           </div>
+          <div className="ctw-logo-bg" data-logo-url="assets/claytechworks_logo_typeA_gray.svg">
+            <img src="assets/claytechworks_logo_typeA_gray.svg" alt="Claytech Works Logo" />
+          </div>
           {((isAgent || isAssistant) && name) || name ? (
             <div className="flex flex-col items-center gap-0 p-2">
               <SplitText