Add MIT license, contribution guide, and public repo docs

CONTRIBUTING.md

@@ -0,0 +1,62 @@
+# Contributing
+
+Thanks for considering a contribution.
+
+## Setup
+
+```bash
+python -m venv .venv
+source .venv/bin/activate
+pip install -e '.[dev]'
+```
+
+Copy env template:
+
+```bash
+cp .env.example .env
+```
+
+Then set real values in `.env` and run:
+
+```bash
+streamlit run app.py
+```
+
+## Development guidelines
+
+- Keep architecture boundaries clear:
+  - `clients/` for external integrations
+  - `domain/` for normalization/business logic
+  - `services/` for app services/indexing
+  - `ui/` for Streamlit rendering
+- Avoid introducing optional fallback paths unless required.
+- Prefer small, focused functions and explicit session-state keys.
+- Preserve safe SSH behavior and path quoting.
+
+## Validation
+
+Before opening a merge request, run:
+
+```bash
+PYTHONPATH=src python -m py_compile app.py src/media_library_viewer/*.py src/media_library_viewer/clients/*.py src/media_library_viewer/domain/*.py src/media_library_viewer/services/*.py src/media_library_viewer/ui/*.py
+```
+
+## Security / secrets
+
+Never commit:
+
+- `.env`
+- `.streamlit/secrets.toml`
+- private keys or API tokens
+
+Use `.env.example` for documented placeholders only.
+
+## Pull requests
+
+Please include:
+
+- what changed
+- why it changed
+- how it was tested
+
+If behavior/requirements changed, also update `docs/REQUIREMENTS.md`.

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026
+
+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.

README.md

@@ -4,6 +4,11 @@ Small Streamlit app for browsing a remote Jellyfin library, inspecting files on
 
 See `docs/REQUIREMENTS.md` for the living requirements, decisions, and planning history.
 
+Project policy/docs:
+
+- License: `LICENSE` (MIT)
+- Contributing guide: `CONTRIBUTING.md`
+
 ## Phase 1 features
 
 - Dashboard media counts for movies, series, and episodes, plus now-playing sessions (user, title, playback state, transcoding)

docs/REQUIREMENTS.md

@@ -314,3 +314,4 @@ Local app dependencies are declared in `pyproject.toml`; `requirements.txt` inst
 - Added configurable `REMOTE_PATH_PREFIX` support so Jellyfin paths can be mapped to SSH-visible paths when opening folders from Media/Library tabs (for example `/media/...` -> `/srv/media/...`).
 - Updated path handoff logic to prefer mapping through `REMOTE_MEDIA_ROOT` (anchor replacement using the root basename, e.g. `media`) and use `REMOTE_PATH_PREFIX` as fallback.
 - Added a public-repo readiness note in README describing what local/sensitive files must stay out of version control.
+- Added `LICENSE` (MIT) and `CONTRIBUTING.md` for public-repo baseline documentation.