Add domain CRUD, energy density constraint, LLM status, reset results, score display fixes

Domain management:
- Add domain list/detail/form templates and full CRUD routes (domains.py)
- Add metric bound add/edit/delete via HTMX partials (_metrics_table.html)

Energy density constraint (Rule 6 in ConstraintResolver):
- Hard-block combos where power source provides <25% of platform's required Wh/kg
- Warn (conditional) when under-density but within 4x
- Solar Sail exempt (no stored energy); Airplane requires 400 Wh/kg, Spaceship 2000 Wh/kg
- Add energy_density_wh_kg provides to all 8 stored-energy power sources in seed data
- 3 new constraint resolver tests

LLM-complete status:
- Pipeline Pass 4 now sets combo status to llm_reviewed after successful LLM review
- update_combination_status guards against downgrading: scored won't overwrite
  llm_reviewed or reviewed; llm_reviewed won't overwrite reviewed
- Add badge-llm_reviewed CSS style (light blue)

Reset results:
- Repository.reset_domain_results() deletes combination_results, combination_scores,
  and pipeline_runs for a domain; pipeline re-evaluates on next run
- POST /results/<domain>/reset route with flash confirmation
- "Reset results" danger button with JS confirm dialog in results list

Fix composite score 0 displaying as --- (Jinja2 falsy 0.0 bug):
- Change `if r.composite_score` to `if r.composite_score is not none`

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/physcom_web/static/style.css

@@ -81,6 +81,7 @@ table.compact th, table.compact td { padding: 0.25rem 0.4rem; font-size: 0.85rem
 .badge-valid { background: #dcfce7; color: #166534; }
 .badge-blocked { background: #fee2e2; color: #991b1b; }
 .badge-scored { background: #dbeafe; color: #1e40af; }
+.badge-llm_reviewed { background: #e0f2fe; color: #0369a1; }
 .badge-reviewed { background: #f3e8ff; color: #6b21a8; }
 .badge-pending { background: #fef3c7; color: #92400e; }
 
@@ -171,6 +172,7 @@ dd { font-size: 0.9rem; }
 .badge-completed { background: #dcfce7; color: #166534; }
 .badge-failed { background: #fee2e2; color: #991b1b; }
 .badge-cancelled { background: #fef3c7; color: #92400e; }
+.badge-rate_limited { background: #ffedd5; color: #9a3412; }
 
 .run-status { padding: 0.25rem 0; }
 .run-status-header { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem; }