Add nomenclature quick reference guide

Co-authored-by: AmedeoPelliccia <164860269+AmedeoPelliccia@users.noreply.github.com>

Author: Copilot

00_00_CAT_LC01-Q100BL_nomenclature-quick-reference_v01.md

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+# Nomenclature Standard Quick Reference
+
+## Pattern
+
+```
+[ROOT]_[BUCKET]_[TYPE]_[VARIANT]_[DESCRIPTION]_[VERSION].[EXT]
+```
+
+## Field Rules
+
+| Field | Format | Examples |
+|-------|--------|----------|
+| ROOT | 2 digits | `00`, `24`, `72` |
+| BUCKET | 2 digits | `00`, `10`, `20`, `30`, `40`, `50`, `60`, `70`, `80`, `90` |
+| TYPE | 2-8 uppercase | `PLAN`, `FHA`, `REQ`, `STD`, `IDX` |
+| VARIANT | Uppercase + hyphens | `Q100BL`, `DRAFT`, `SYS`, `LC02-Q100BL` |
+| DESCRIPTION | lowercase-kebab-case | `safety-program`, `propulsion`, `hazard-log` |
+| VERSION | v + 2 digits | `v01`, `v02`, `v10` |
+| EXT | lowercase | `md`, `json`, `xlsx`, `pdf` |
+
+## Special Rules
+
+### ⚠️ CRITICAL: BUCKET=00 requires LC prefix
+
+If `BUCKET=00`, then `VARIANT` **MUST** start with `LC01` through `LC14`
+
+✅ `00_00_PLAN_LC02-Q100BL_safety-program_v01.md`  
+❌ `00_00_PLAN_Q100BL_safety-program_v01.md`
+
+### Delimiters
+
+- Use `_` **only** between fields
+- Use `-` **only** inside VARIANT and DESCRIPTION
+
+## BUCKET Values
+
+| Code | Domain |
+|------|--------|
+| `00` | Lifecycle (requires LC prefix in VARIANT) |
+| `10` | Operations |
+| `20` | Primary Subsystem |
+| `30` | Circularity |
+| `40` | Software |
+| `50` | Structures |
+| `60` | Storages |
+| `70` | Propulsion |
+| `80` | Energy |
+| `90` | Tables/Schemas/Diagrams/Reference |
+
+## Approved TYPE Codes
+
+### Planning / Control
+`PLAN`, `MIN`, `RPT`, `LOG`, `ACT`, `IDX`
+
+### Safety Analyses
+`FHA`, `PSSA`, `SSA`, `FTA`, `ANA`
+
+### Requirements / Allocation
+`REQ`, `DAL`, `TRC`
+
+### Data / Reference
+`CAT`, `LST`, `GLO`, `MAT`, `SCH`, `DIA`, `TAB`, `STD`
+
+## Validation
+
+```bash
+# Single file
+python validate_nomenclature.py <filename>
+
+# All files
+python validate_nomenclature.py --check-all
+```
+
+## Examples
+
+### ✅ Valid
+
+```
+00_00_PLAN_LC02-Q100BL_safety-program_v01.md
+00_70_FHA_SYS_propulsion_v01.md
+00_40_REQ_SW_software-safety-reqs_v01.md
+00_20_TRC_Q100BL_traceability-matrix_v01.xlsx
+00_90_SCH_GEN_hazard-log-schema_v01.json
+24_40_REQ_SW-01_electrical-power-software_v01.md
+```
+
+### ❌ Invalid
+
+```
+00_00_PLAN_Q100BL_safety-program_v01.md       # Missing LC prefix
+00-70-FHA-SYS-propulsion-v01.md              # Wrong delimiter
+00_70_FHA_SYS_propulsion_v1.md               # VERSION must be vNN
+00_99_LST_GEN_glossary_v01.md                # Invalid BUCKET
+00_70_FHA_SYS_PropulsionFHA_v01.md           # Uppercase in DESCRIPTION
+00_70_fha_SYS_propulsion_v01.md              # Lowercase TYPE
+```
+
+## Common Mistakes
+
+1. **Missing LC prefix for BUCKET=00**
+   - Fix: Add `LC01` through `LC14` to start of VARIANT
+   - Example: `Q100BL` → `LC02-Q100BL`
+
+2. **Wrong delimiters**
+   - Fix: Use `_` between fields, `-` inside fields only
+   - Example: `00-70-FHA` → `00_70_FHA`
+
+3. **Wrong version format**
+   - Fix: Always use 2 digits after `v`
+   - Example: `v1` → `v01`
+
+4. **Uppercase in DESCRIPTION**
+   - Fix: Use lowercase-kebab-case only
+   - Example: `SafetyProgram` → `safety-program`
+
+5. **Lowercase TYPE**
+   - Fix: Use uppercase only
+   - Example: `fha` → `FHA`
+
+## Reference Documents
+
+- **Full Standard**: `00_00_STD_LC01-Q100BL_nomenclature-standard_v01.md`
+- **Automation Guide**: `00_00_IDX_LC01-Q100BL_nomenclature-automation-guide_v01.md`
+- **Agent Instructions**: `.github/NOMENCLATURE_AGENT_INSTRUCTIONS.md`
+
+---
+
+**Last Updated**: 2025-12-14  
+**Version**: 1.0