feat: initial release of Protocol Droid v0.2.0

A tool for authoring, sharing, and curating social protocols.

Features:
- Protocol library with search, tag filtering, and sort by date/relevance
- Protocol authoring with structured fields (title, description, steps, outcome, practice, source, tags)
- Protocol forking with provenance tracking
- Collection creation with searchable protocol picker and ordering
- User accounts with roles (admin, member, viewer)
- YAML import/export for portability
- Self-hostable on LAMP/Cloudron, works in subdirectories
- Responsive design with hamburger menu on mobile
- About page

Security:
- CSRF protection via Origin/Referer validation
- Session regeneration on login/register
- Secure session cookie params (HttpOnly, SameSite, Secure)
- Visibility enforcement on private/unlisted items
- YAML object injection hardening
- Login rate limiting
- Path traversal protection
- Input validation and length clamping
- Vote value constraining

Stack: PHP 8.x + MySQL/MariaDB, vanilla JS frontend, no external dependencies.

Hippocratic License (HL3-CORE).

cloudron/CloudronManifest.json

@@ -0,0 +1,26 @@
+{
+  "id": "org.medlab.protocoldroid",
+  "title": "Protocol Droid",
+  "author": "Media Economies Design Lab, CU Boulder",
+  "description": "A tool for authoring, sharing, and curating social protocols. Self-hostable and whitelabel-able.",
+  "tagline": "A commons of social protocols",
+  "version": "0.1.0",
+  "healthCheckPath": "/api",
+  "httpPort": 8000,
+  "manifestVersion": 2,
+  "website": "https://medlab.host",
+  "contactEmail": "medlab@colorado.edu",
+  "icon": "file://icon.png",
+  "addons": {
+    "mysql": {
+      "noDatabase": false
+    }
+  },
+  "tcpPorts": {},
+  "udpPorts": {},
+  "capabilities": [],
+  "minBoxVersion": "8.0.0",
+  "documentationUrl": "https://github.com/medlab/protocol-droid",
+  "tags": ["collaboration", "governance", "protocols", "commons"],
+  "mediaLinks": []
+}