Migrate to new Gitea instance (gitea.wbd-rd.nl)

- Update all submodule URLs from gitea.centraal.wbd-rd.nl to gitea.wbd-rd.nl
- Add settler as proper submodule in .gitmodules
- Add agent skills, function anchors, decisions, and improvements
- Add Docker configuration and scripts
- Add manuals and third_party docs
- Update .gitignore with secrets and build artifacts
- Remove stale .tgz build artifact

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

.claude/rules/node-architecture.md

@@ -0,0 +1,31 @@
+---
+paths:
+  - "nodes/*/src/**"
+---
+
+# Node Architecture Rules
+
+## 3-Tier Structure
+Every node follows entry → nodeClass → specificClass:
+
+1. **Entry file** (`nodes/<nodeName>/<nodeName>.js`): Registers with Node-RED via `RED.nodes.registerType`, exposes admin HTTP endpoints.
+2. **nodeClass** (`nodes/<nodeName>/src/nodeClass.js`): Handles Node-RED runtime concerns — message routing, output formatting, tick loops, status updates, `RED.*` API calls.
+3. **specificClass** (`nodes/<nodeName>/src/specificClass.js`): Pure domain logic — physics, control algorithms, state machines.
+
+## Separation Rules
+- **specificClass must never call `RED.*` directly** — all Node-RED interaction goes through nodeClass.
+- specificClass is the source of truth for domain behavior.
+- nodeClass is the adapter between Node-RED and domain logic.
+- Entry file is minimal — registration and admin endpoints only.
+
+## Output Port Convention
+- Port 0: Process data (control outputs, state, setpoints)
+- Port 1: InfluxDB telemetry payload
+- Port 2: Registration/control plumbing (parent-child handshakes)
+
+## Admin Endpoints
+- `GET /<nodeName>/menu.js` — Dynamic menu configuration for editor
+- `GET /<nodeName>/configData.js` — Runtime configuration for editor
+
+## Submodule Awareness
+Most `nodes/*` directories are git submodules. Keep edits scoped to the target node's directory.