Add .context/stack.md from context marketplace

Author: NicolasIRAGNE

.context/stack.md

@@ -0,0 +1,19 @@
+# Technology Stack
+
+## Languages
+- **Dockerfile**
+- **HTML**
+- **JavaScript**
+- **Jinja**
+- **Python**
+- **Shell**
+
+## Frameworks & Libraries
+_Add frameworks and libraries used in this project_
+
+## Tools & Services
+_Add development tools, CI/CD, and services used_
+
+## Architecture
+_Describe the high-level architecture of the project_
+C bien