Add Themis application with custom widgets, views, and utilities

- Implemented custom form widgets for date, time, and datetime fields with DaisyUI styling.
- Created utility functions for formatting dates, times, and numbers according to user preferences.
- Developed views for profile settings, API key management, and notifications, including health check endpoints.
- Added URL configurations for Themis tests and main application routes.
- Established test cases for custom widgets to ensure proper functionality and integration.
- Defined project metadata and dependencies in pyproject.toml for package management.

pyproject.toml

@@ -0,0 +1,46 @@
+[project]
+name = "mnemosyne"
+version = "0.1.0"
+description = "Content-type-aware, multimodal personal knowledge management system"
+readme = "README.md"
+license = {text = "MIT"}
+requires-python = ">=3.12"
+dependencies = [
+    "Django>=5.2,<6.0",
+    "djangorestframework>=3.14,<4.0",
+    "django-neomodel>=0.1,<1.0",
+    "neomodel>=5.3,<6.0",
+    "neo4j>=5.0,<6.0",
+    "celery>=5.3,<6.0",
+    "django-storages[boto3]>=1.14,<2.0",
+    "django-environ>=0.11,<1.0",
+    "psycopg[binary]>=3.1,<4.0",
+    "dj-database-url>=2.1,<3.0",
+    "shortuuid>=1.0,<2.0",
+    "gunicorn>=21.0,<24.0",
+    "cryptography>=41.0,<45.0",
+    "flower>=2.0,<3.0",
+    "pymemcache>=4.0,<5.0",
+    "openai>=1.0,<2.0",
+    "django-prometheus>=2.3,<3.0",
+    # Phase 2: Embedding Pipeline
+    "PyMuPDF>=1.24,<2.0",
+    "pymupdf4llm>=0.0.17,<1.0",
+    "semantic-text-splitter>=0.20,<1.0",
+    "tokenizers>=0.20,<1.0",
+    "Pillow>=10.0,<12.0",
+    "requests>=2.31,<3.0",
+]
+
+[project.optional-dependencies]
+dev = [
+    "django-debug-toolbar>=4.0,<5.0",
+    "docker>=7.0,<8.0",
+]
+
+[build-system]
+requires = ["setuptools>=68.0"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools.packages.find]
+where = ["mnemosyne"]