feat: add pip fallback requirements file

Added requirements-fallback.txt as a pip-compatible fallback for when Poetry is unavailable or broken. This file is automatically generated from pyproject.toml dependencies and allows the installer to gracefully fall back to pip installation instead of attempting complex Poetry fixes.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: markolofsen

solution/projects/django/requirements-fallback.txt

@@ -0,0 +1,10 @@
+# Fallback requirements for pip installation
+# Generated from pyproject.toml for when Poetry is unavailable
+
+django>=5.2.0,<6.0.0
+django-cfg[full]
+Pillow>=10.0.0,<11.0.0
+psutil>=5.9.0,<6.0.0
+faker>=37.5.3,<38.0.0
+markdown>=3.9,<4.0
+uvicorn[standard]>=0.34.0,<1.0.0