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>

.agents/decisions/DECISION-20260224-rotatingmachine-hydraulic-efficiency-and-confidence.md

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+# Decision: RotatingMachine Hydraulic Efficiency Correction and Prediction Confidence
+
+- Date: 2026-02-24
+- Scope: `nodes/rotatingMachine/src/specificClass.js`, rotatingMachine integration tests
+
+## Context
+Hydraulic efficiency calculation in `rotatingMachine` was dimensionally inconsistent and could over/under-report efficiency KPIs.  
+At the same time, prediction drift tooling (`nrmse`) existed but was not actively connected to rotatingMachine output confidence.
+
+## Options Considered
+1. Keep existing formula and only tune thresholds.
+2. Replace formula with standard hydraulic power/efficiency equations and expose prediction confidence from live pressure source + drift.
+
+## Decision
+Adopt option 2.
+
+- Hydraulic power now follows standard engineering relation:
+  - `P_h = Q * Δp` (equivalent to `ρ g Q H`)
+  - `η_h = P_h / P_in`
+- RotatingMachine now computes flow drift via `nrmse` from measured vs predicted flow windows.
+- RotatingMachine now exposes prediction confidence fields in output:
+  - `predictionQuality`
+  - `predictionConfidence`
+  - `predictionPressureSource`
+  - `predictionFlags`
+
+## Consequences
+- Efficiency KPIs become physically interpretable and traceable to pressure/flow/power inputs.
+- Prediction trust is now observable by downstream control/dashboard layers.
+- Output schema is expanded with new prediction confidence fields.
+
+## Rollback / Migration Notes
+- Rollback path: revert `specificClass.js` hydraulic block and prediction-health integration.
+- No mandatory migration required for existing flows unless they choose to consume new prediction confidence fields.