chore: remove generated lockfiles, simplify deps, update pre-commit and ignore .python-version

- delete requirements.txt and uv.lock (remove exported/locked artefacts)
- remove .python-version file and add .python-version / uv.lock to .gitignore
- simplify pyproject.toml dependency pins (use package names instead of explicit version specifiers)
- update pre-commit hooks revisions and remove uv-pre-commit hooks (rev bumps for add-trailing-comma, pyupgrade, ruff-pre-commit, actionlint)

pyproject.toml

@@ -6,23 +6,23 @@ readme = "README.md"
 requires-python = ">=3.12"
 dependencies = [
     "apscheduler>=3.11.0",
-    "discord-webhook>=1.4.1",
-    "fastapi>=0.115.12",
-    "httpx>=0.28.1",
-    "jinja2>=3.1.6",
-    "lxml>=5.4.0",
-    "markdownify>=1.1.0",
-    "platformdirs>=4.3.8",
-    "python-dotenv>=1.1.0",
-    "python-multipart>=0.0.20",
-    "reader>=3.18",
-    "sentry-sdk[fastapi]>=2.29.1",
-    "tldextract>=5.3.0",
-    "uvicorn>=0.34.3",
+    "discord-webhook",
+    "fastapi",
+    "httpx",
+    "jinja2",
+    "lxml",
+    "markdownify",
+    "platformdirs",
+    "python-dotenv",
+    "python-multipart",
+    "reader",
+    "sentry-sdk[fastapi]",
+    "tldextract",
+    "uvicorn",
 ]
 
 [dependency-groups]
-dev = ["djlint>=1.36.4", "pytest>=8.4.1"]
+dev = ["djlint", "pytest"]
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]