feat(phase1): add image storage utilities

- Create backend/services/image_storage.py with 4 core functions:
  - sanitize_filename(): remove unsafe chars, limit to 255 chars, convert to lowercase
  - get_unique_filename(): handle collisions with UUID suffix (format: {name}_{uuid8}_{variant}.jpg)
  - ensure_image_directories(): create /images/ root and category subdirs on startup
  - save_image(): save bytes to /images/{category}/{filename}, returns relative path
- Create comprehensive test suite (22 tests) covering all functionality
- Integrate ensure_image_directories() into FastAPI startup event
- Directory structure: /images/{category}/{filename}
- Collision handling: auto-suffix with UUID if filename exists
- All tests passing, pathlib.Path for safe operations

venv/lib/python3.12/site-packages/docstring_parser-0.18.0.dist-info/INSTALLER

@@ -0,0 +1 @@
+pip

venv/lib/python3.12/site-packages/docstring_parser-0.18.0.dist-info/METADATA

@@ -0,0 +1,118 @@
+Metadata-Version: 2.4
+Name: docstring_parser
+Version: 0.18.0
+Summary: Parse Python docstrings in reST, Google and Numpydoc format
+Project-URL: homepage, https://github.com/rr-/docstring_parser
+Project-URL: repository, https://github.com/rr-/docstring_parser
+Project-URL: changelog, https://github.com/rr-/docstring_parser/blob/master/CHANGELOG.md
+Author-email: Marcin Kurczewski <dash@wind.garden>
+License: MIT
+License-File: LICENSE.md
+Classifier: Development Status :: 4 - Beta
+Classifier: Environment :: Other Environment
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Natural Language :: English
+Classifier: Operating System :: OS Independent
+Classifier: Programming Language :: Python :: 3.8
+Classifier: Programming Language :: Python :: 3.9
+Classifier: Programming Language :: Python :: 3.10
+Classifier: Programming Language :: Python :: 3.11
+Classifier: Programming Language :: Python :: 3.12
+Classifier: Programming Language :: Python :: 3.13
+Classifier: Programming Language :: Python :: 3.14
+Classifier: Topic :: Documentation :: Sphinx
+Classifier: Topic :: Software Development :: Libraries :: Python Modules
+Classifier: Topic :: Text Processing :: Markup
+Requires-Python: >=3.8
+Provides-Extra: dev
+Requires-Dist: pre-commit>=2.16.0; (python_version >= '3.9') and extra == 'dev'
+Requires-Dist: pydoctor>=25.4.0; extra == 'dev'
+Requires-Dist: pytest; extra == 'dev'
+Provides-Extra: docs
+Requires-Dist: pydoctor>=25.4.0; extra == 'docs'
+Provides-Extra: test
+Requires-Dist: pytest; extra == 'test'
+Description-Content-Type: text/markdown
+
+docstring_parser
+================
+
+[![Build](https://github.com/rr-/docstring_parser/actions/workflows/build.yml/badge.svg)](https://github.com/rr-/docstring_parser/actions/workflows/build.yml)
+
+Parse Python docstrings. Currently support ReST, Google, Numpydoc-style and
+Epydoc docstrings.
+
+Example usage:
+
+```python
+>>> from docstring_parser import parse
+>>>
+>>>
+>>> docstring = parse(
+...     '''
+...     Short description
+...
+...     Long description spanning multiple lines
+...     - First line
+...     - Second line
+...     - Third line
+...
+...     :param name: description 1
+...     :param int priority: description 2
+...     :param str sender: description 3
+...     :raises ValueError: if name is invalid
+...     ''')
+>>>
+>>> docstring.long_description
+'Long description spanning multiple lines\n- First line\n- Second line\n- Third line'
+>>> docstring.params[1].arg_name
+'priority'
+>>> docstring.raises[0].type_name
+'ValueError'
+```
+
+Read [API Documentation](https://rr-.github.io/docstring_parser/).
+
+# Installation
+
+Installation using pip
+
+```shell
+pip install docstring_parser
+
+# or if you want to install it in a virtual environment
+
+python -m venv venv # create environment
+source venv/bin/activate # activate environment
+python -m pip install docstring_parser
+```
+
+Installation using conda
+
+
+1. Download and install miniconda or anaconda
+2. Install the package from the conda-forge channel via:
+  - `conda install -c conda-forge docstring_parser`
+  - or create a new conda environment via `conda create -n my-new-environment -c conda-forge docstring_parser`
+
+
+# Contributing
+
+To set up the project:
+```sh
+git clone https://github.com/rr-/docstring_parser.git
+cd docstring_parser
+
+python -m venv venv  # create environment
+source venv/bin/activate  # activate environment
+
+pip install -e ".[dev]"  # install as editable
+pre-commit install  # make sure pre-commit is setup
+```
+
+To run tests:
+```
+source venv/bin/activate
+pytest
+```

venv/lib/python3.12/site-packages/docstring_parser-0.18.0.dist-info/RECORD

@@ -0,0 +1,24 @@
+docstring_parser-0.18.0.dist-info/INSTALLER,sha256=zuuue4knoyJ-UwPPXg8fezS7VCrXJQrAP7zeNuwvFQg,4
+docstring_parser-0.18.0.dist-info/METADATA,sha256=y8QgJ5l_1LGUrl_QZKTR5XuSl2lB0MJtNpVhp8AWozM,3550
+docstring_parser-0.18.0.dist-info/RECORD,,
+docstring_parser-0.18.0.dist-info/WHEEL,sha256=QccIxa26bgl1E6uMy58deGWi-0aeIkkangHcxk2kWfw,87
+docstring_parser-0.18.0.dist-info/licenses/LICENSE.md,sha256=3-UUozeuhBer0xqK9we71hcrA-VDC7CD4UWJnql6Puo,1084
+docstring_parser/__init__.py,sha256=78WKoStdo7zvCcEU1Sm2zLvU_BRGKyTYjlScFEB14nk,695
+docstring_parser/__pycache__/__init__.cpython-312.pyc,,
+docstring_parser/__pycache__/attrdoc.cpython-312.pyc,,
+docstring_parser/__pycache__/common.cpython-312.pyc,,
+docstring_parser/__pycache__/epydoc.cpython-312.pyc,,
+docstring_parser/__pycache__/google.cpython-312.pyc,,
+docstring_parser/__pycache__/numpydoc.cpython-312.pyc,,
+docstring_parser/__pycache__/parser.cpython-312.pyc,,
+docstring_parser/__pycache__/rest.cpython-312.pyc,,
+docstring_parser/__pycache__/util.cpython-312.pyc,,
+docstring_parser/attrdoc.py,sha256=grazLW9kqFIFmvjP9waYtTjgUEurlrzBZBPMED4yRNk,4126
+docstring_parser/common.py,sha256=Wua16UpvZL8nqmrRMwph2PPNDx774aK3WFnSnjvVPPw,6320
+docstring_parser/epydoc.py,sha256=qOA77cpOAbuqElDA_FAg_k4IRS4KNghg-i6uL_tL1LY,9410
+docstring_parser/google.py,sha256=Bu5Cy1fylpbQLQnchvqnosd7aFZLAQmhjVo14JUZyow,13550
+docstring_parser/numpydoc.py,sha256=VwttH9MIU2JUAPM5D3mU0a2Y5g-9MrNbEI_q8kcGJMY,17643
+docstring_parser/parser.py,sha256=e6xUG9t8Q-o_q_OOkRxw7vs3TG6GxcIHJAF6_udQwXk,2956
+docstring_parser/py.typed,sha256=bWew9mHgMy8LqMu7RuqQXFXLBxh2CRx0dUbSx-3wE48,27
+docstring_parser/rest.py,sha256=XNMfZyEHVqsAH7l4BG1IUB7wgj7qWuysguXJYCikDp8,8301
+docstring_parser/util.py,sha256=8VmGXhuMcWkrvtZSSKIhX4cKakJmWIILffY6JBQAiCg,4506

venv/lib/python3.12/site-packages/docstring_parser-0.18.0.dist-info/WHEEL

@@ -0,0 +1,4 @@
+Wheel-Version: 1.0
+Generator: hatchling 1.29.0
+Root-Is-Purelib: true
+Tag: py3-none-any

venv/lib/python3.12/site-packages/docstring_parser-0.18.0.dist-info/licenses/LICENSE.md

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2018 Marcin Kurczewski
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.