chore: clean up superproject structure

Move content to correct locations:
- AGENTS.md → .agents/AGENTS.md (with orchestrator reference update)
- third_party/docs/ (8 reference docs) → wiki/concepts/
- manuals/ (12 Node-RED docs) → wiki/manuals/

Delete 23 unreferenced one-off scripts from scripts/ (keeping 5 active).
Delete stale Dockerfile.e2e, docker-compose.e2e.yml, test/e2e/.
Remove empty third_party/ directory.

Root is now: README, CLAUDE.md, LICENSE, package.json, Makefile,
Dockerfile, docker-compose.yml, docker/, scripts/ (5), nodes/, wiki/,
plus dotfiles (.agents, .claude, .gitea).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

wiki/concepts/wastewater-compliance-nl.md

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+# Dutch Wastewater Regulations & Compliance
+
+> **Used by**: `commissioning-compliance` agent, `biological-process-engineer` agent
+> **Validation**: Verified against EU Directive 91/271/EEC, Activiteitenbesluit milieubeheer, and Dutch water authority publications
+
+## Regulatory Framework
+
+### European Level
+- **EU Urban Waste Water Treatment Directive 91/271/EEC** — Primary directive governing collection, treatment, and discharge of urban wastewater across all EU member states
+- **Water Framework Directive 2000/60/EC** — Establishes river basin management and environmental quality standards
+- **Revised UWWTD (2024)** — Updated directive with stricter nutrient limits and energy neutrality targets
+
+### Dutch National Level
+- **Waterwet** (Water Act) — National water management framework
+- **Waterschapswet** (Water Authority Act) — Governance of regional water authorities
+- **Activiteitenbesluit milieubeheer** — General rules for environmental activities including wastewater discharge
+- **Besluit lozing afvalwater huishoudens** — Rules for domestic wastewater discharge
+
+### Regional Level
+- **Waterschap Brabantse Delta** — Regional water authority managing the target WWTP
+- Operates under national framework with site-specific discharge permits (watervergunning)
+
+## EU UWWTD Effluent Standards (Annex I)
+
+### Table 1: Secondary Treatment Requirements
+
+| Parameter | Concentration | Min. Reduction |
+|-----------|--------------|----------------|
+| BOD₅ (at 20°C, without nitrification) | 25 mg/L O₂ | 70-90% |
+| COD | 125 mg/L O₂ | 75% |
+| TSS (Total Suspended Solids) | 35 mg/L | 90% (>10,000 p.e.) |
+| TSS (Total Suspended Solids) | 60 mg/L | 70% (2,000-10,000 p.e.) |
+
+### Table 2: Nutrient Requirements for Sensitive Areas
+
+| Parameter | Concentration | Min. Reduction |
+|-----------|--------------|----------------|
+| Total Phosphorus (10,000-100,000 p.e.) | 2 mg/L P | 80% |
+| Total Phosphorus (>100,000 p.e.) | 1 mg/L P | 80% |
+| Total Nitrogen (10,000-100,000 p.e.) | 15 mg/L N | 70-80% |
+| Total Nitrogen (>100,000 p.e.) | 10 mg/L N | 70-80% |
+
+*Note: The Netherlands designated its entire territory as a "sensitive area" under the UWWTD, meaning nutrient requirements (Table 2) apply to all significant WWTPs.*
+
+### Dutch Practice (Often Stricter)
+Dutch water authorities commonly set stricter limits than the EU minimum:
+
+| Parameter | Typical Dutch Permit Limit | EU Minimum |
+|-----------|---------------------------|------------|
+| N-total | 5-10 mg/L | 10-15 mg/L |
+| P-total | 0.3-1.0 mg/L | 1-2 mg/L |
+| BOD₅ | 5-10 mg/L | 25 mg/L |
+| COD | 50-100 mg/L | 125 mg/L |
+| TSS | 10-20 mg/L | 35 mg/L |
+| NH₄-N | 1-2 mg/L | Not specified in UWWTD |
+
+*Note: Actual permit limits are site-specific. The values above represent common ranges for Dutch WWTPs.*
+
+## Monitoring and Reporting Obligations
+
+### Sampling Requirements (UWWTD Annex I, Table 3)
+| Plant Size | Min. Annual Samples |
+|------------|-------------------|
+| 2,000-9,999 p.e. | 12 |
+| 10,000-49,999 p.e. | 12 |
+| ≥50,000 p.e. | 24 |
+
+### Compliance Assessment
+- Based on **annual averages** for most parameters
+- A defined number of samples may fail while still meeting compliance (concentration limits)
+- Percentage reduction assessed against influent loading
+
+### Reporting Chain
+1. WWTP operator monitors and reports to water authority
+2. Water authority (Waterschap) reports to Province
+3. Province reports to national government (IenW)
+4. National government reports to European Commission
+
+## Waterschap Brabantse Delta Context
+
+### Service Area
+- Province of Noord-Brabant (western part)
+- Multiple WWTPs of varying sizes
+- Mixed urban/agricultural/industrial catchment
+
+### Key Challenges
+- Agricultural runoff contributing nutrient loading
+- Seasonal variations in flow and temperature
+- Emerging contaminants (pharmaceuticals, microplastics)
+- Energy efficiency targets (energy-neutral WWTP goal)
+
+### EVOLV Relevance
+- Process automation targets: optimizing energy use while maintaining effluent quality
+- Real-time monitoring: continuous measurement of key parameters (NH₄, NO₃, PO₄, DO, TSS)
+- Predictive control: using ASM models to anticipate process changes
+- Reporting support: automated telemetry data for compliance reporting
+
+## Key Compliance Parameters for EVOLV
+
+| Parameter | Measurement Method | EVOLV Node | Typical Control Strategy |
+|-----------|-------------------|------------|-------------------------|
+| NH₄-N | Ion-selective electrode | measurement | Aeration control (DO setpoint cascade) |
+| NO₃-N | UV absorption / ISE | measurement | Anoxic zone recirculation control |
+| PO₄-P | Colorimetric / ISE | measurement | Chemical dosing or Bio-P optimization |
+| DO | Amperometric / optical | measurement | Blower/diffuser control |
+| TSS/MLSS | Optical (turbidity) | measurement | Sludge wasting control |
+| Flow | Electromagnetic | measurement | Hydraulic load monitoring |
+| Temperature | RTD/Pt100 | measurement | Process rate compensation |
+
+## Authoritative References
+
+1. Council Directive 91/271/EEC (1991). "Concerning urban waste water treatment" — Official Journal L 135/40
+2. Directive (EU) 2024/3019. "Concerning urban wastewater treatment (recast)"
+3. Activiteitenbesluit milieubeheer — Dutch Activities Decree (environmental management)
+4. Waterschapswet — Dutch Water Authority Act
+5. STOWA (Stichting Toegepast Onderzoek Waterbeheer) — Dutch Foundation for Applied Water Research (various publications on WWTP optimization)
+6. Waterschap Brabantse Delta — Regional water management plans and discharge permits