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/skills/evolv-biological-process-engineering/SKILL.md

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+---
+name: evolv-biological-process-engineering
+description: Engineer biological wastewater process behavior for EVOLV nodes. Use when implementing or reviewing reactor/settler biology, ASM-style kinetics, oxygen demand, nitrification/denitrification, sludge behavior, calibration assumptions, and biologically plausible constraints.
+---
+
+# EVOLV Biological Process Engineering
+
+## Mission
+Keep EVOLV biological process models physically plausible, calibratable, and operationally useful.
+
+## Harness Execution Contract
+- Ground changes in current biology/state variables and connected control topics.
+- Define invariants before edits:
+  - biological mass-balance intent is preserved
+  - model assumptions remain explicit and traceable
+  - degraded behavior remains availability-first and bounded
+- Validate with deterministic tests and representative operating scenarios.
+
+## Scope
+- `nodes/reactor/`
+- `nodes/settler/`
+- `nodes/pumpingStation/` (where biology interacts with flow/retention assumptions)
+- Related reaction modules and utilities under `nodes/*/src/`
+
+## Workflow
+1. Identify biological state variables, units, and expected ranges.
+2. Map kinetic pathways (growth, decay, transfer, conversion) and rate constraints.
+3. Verify oxygen/temperature dependencies and fallback behavior.
+4. Check integration stability for configured time-step and resolution choices.
+5. Confirm outputs remain interpretable for control and dashboard consumers.
+
+## Standards
+- Keep state vectors explicit and index mappings documented.
+- Avoid silent clipping/coercion without test coverage and rationale.
+- Preserve topic/payload compatibility unless migration is defined.
+- Record calibration assumptions and required field data.
+
+## Test Expectations
+Cover:
+- kinetic branch behavior under representative and boundary conditions
+- non-negativity and boundedness safeguards
+- temperature and oxygen transfer sensitivity
+- time-step/resolution edge behavior and stability warnings
+
+## Deliverables
+Return:
+- biological assumptions and constraints used
+- changed files/tests and evidence
+- calibration notes and unresolved biological uncertainties
+
+Decision interview triggers:
+- altered biology assumptions that can change plant behavior
+- parameter/default changes with startup or compliance impact
+- compatibility breaks in biological outputs or topic contracts

.agents/skills/evolv-biological-process-engineering/agents/openai.yaml

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+interface:
+  display_name: "EVOLV Biological Process Engineering"
+  short_description: "Wastewater biology and kinetics specialist"
+  default_prompt: "Map biological state variables and kinetics in the impacted EVOLV nodes, define non-negotiable biological invariants, validate oxygen/temperature/time-step behavior, and return test-backed recommendations with calibration assumptions and risks."