feat: Gruppe 1 – Projektgerüst, Auth, CLI (v0.1.0)

- pyproject.toml: hatchling build, mcp-familywall entry-point, deps
- src/mcp_familywall/__init__.py: version 0.1.0
- src/mcp_familywall/config.py: YAML config loader (schema_version: 1)
- src/mcp_familywall/auth.py: keyring credential resolution (FW_EMAIL/FW_PASSWORD → keyring)
- src/mcp_familywall/fw_client.py: httpx client, login/logout/call, FW_DEBUG logging
- src/mcp_familywall/cli.py: click CLI with setup / check / serve commands
- .gitignore, README.md, CLAUDE.md, SPEC.md

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

README.md

@@ -0,0 +1,75 @@
+# mcp-familywall
+
+MCP server for [Family Wall](https://www.familywall.com) -- read your family's circles, lists, and tasks directly from Claude.
+
+## Features (v1.0 -- read-only)
+
+- `get_circles` -- list all family circles
+- `get_lists` -- list all task lists (optionally filtered by circle)
+- `get_tasks` -- list tasks in a specific list
+
+## Requirements
+
+- Python 3.12+
+- [uv](https://docs.astral.sh/uv/)
+- A Family Wall account
+
+## Installation
+
+```bash
+uv tool install mcp-familywall
+```
+
+## Setup
+
+Run the interactive setup wizard once to store your credentials securely in the OS keyring:
+
+```bash
+mcp-familywall setup
+```
+
+This will:
+1. Prompt for your Family Wall email and password
+2. Verify the credentials against the API
+3. Store them in the OS keyring
+4. Print a Claude Desktop configuration snippet
+
+## Claude Desktop configuration
+
+Add the printed snippet to your `claude_desktop_config.json`:
+
+```json
+{
+  "mcpServers": {
+    "familywall": {
+      "command": "uvx",
+      "args": ["mcp-familywall", "serve"]
+    }
+  }
+}
+```
+
+## Verify
+
+```bash
+mcp-familywall check
+```
+
+## Debug logging
+
+Set `FW_DEBUG=1` to log full request/response bodies to stderr (passwords are masked):
+
+```bash
+FW_DEBUG=1 mcp-familywall check
+```
+
+## Credentials
+
+Credentials are resolved in this order:
+
+1. Environment variables `FW_EMAIL` and `FW_PASSWORD`
+2. OS keyring (set by `mcp-familywall setup`)
+
+## License
+
+MIT