Restructure Hydrotech Beam project — KB-integrated layout

New project structure with knowledge base integration:
- kb/ with components, materials, fea, dev generations
- models/ for reference NX files (golden copies)
- studies/ for self-contained optimization campaigns
- deliverables/ for final outputs
- DECISIONS.md decision log (6 decisions tracked)
- BREAKDOWN.md (moved from 1_breakdown/)
- Gen 001 created from intake + technical breakdown

KB extension file: atomizer/shared/skills/knowledge-base-atomizer-ext.md

Refs: DEC-HB-004, DEC-HB-005, DEC-HB-006

projects/hydrotech-beam/kb/fea/models/sol101-static.md

@@ -0,0 +1,46 @@
+# SOL 101 — Static Analysis
+
+**Simulation:** Beam_sim1.sim
+**Solver:** NX Nastran SOL 101 (Linear Static)
+**Status:** Pending gap resolution
+
+---
+
+## Setup
+
+| Item | Value | Notes |
+|------|-------|-------|
+| Solution type | SOL 101 (Linear Static) | Appropriate for this problem |
+| Element type | ❓ TBD | Gap G8: CQUAD4/CQUAD8 (shell) or CTETRA/CHEXA (solid)? |
+| Mesh density | ❓ TBD | Gap G8: convergence checked? |
+| Loading | ❓ TBD | Gap G2: point load? distributed? self-weight? |
+| BCs | ❓ TBD | Gap G1: cantilever? simply-supported? |
+
+## Result Extraction
+
+| Output | Method | Expression/Sensor | Status |
+|--------|--------|-------------------|--------|
+| Mass | NX expression | `p173` | ✅ Known |
+| Tip displacement | ❓ Sensor or .f06 parse | TBD | Gap G3, G6 |
+| Von Mises stress | ❓ Sensor or .f06 parse | TBD | Gap G4, G6 |
+
+## Solver Considerations
+
+*From Technical Breakdown:*
+
+- **Linear assumption:** 22 mm displacement on likely 2+ m beam → L/δ probably OK. Verify.
+- **Mesh sensitivity:** Stress at hole edges is mesh-dependent. Need convergence check (Gap G8).
+- **Mesh morphing vs remesh:** Parametric NX models typically remesh on update. Need to confirm behavior across DV range (Gap G7).
+- **Runtime estimate:** Single beam, ~10K–100K DOF → probably seconds to low minutes per evaluation.
+
+## Validation Checklist
+
+- [ ] Baseline mass matches NX expression `p173`
+- [ ] Baseline displacement matches reported ~22 mm
+- [ ] Mesh convergence verified at baseline
+- [ ] Mesh quality acceptable at DV range extremes
+- [ ] Model rebuilds cleanly at all 4 corners of design space
+
+## History
+
+- **Gen 001** (2026-02-09): Initial documentation from technical breakdown. All solver details pending gap resolution.