feat(dashboard): rebuild SOC dashboard + fix ClickHouse SQL

Complete rewrite of the SOC dashboard using FastAPI + Jinja2 + htmx + Chart.js + Tailwind CSS.
Replaces the old React/Vite frontend with server-rendered templates.

Dashboard pages:
- Overview: KPIs, timeline chart, threat distribution, top IPs
- Detections: paginated/filterable anomaly table
- Scores: ml_all_scores with AE error & XGB prob columns
- Traffic: HTTP logs with method/host filters
- IP Investigation: full deep-dive (scores, features, HTTP logs, classify)
- Classification: SOC feedback form + history
- Features: AI + thesis feature stats
- Models: scoring stats + model metadata

API: 9 JSON endpoints with parameterized queries, sort whitelists

SQL fixes:
- 05_aggregation_tables: add deduplicate_merge_projection_mode
- 11_views: fix nested aggregate (argMax inside sum)
- 12_thesis_features: remove invalid 'let' bindings, fix groupArrayIf type

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

services/dashboard/requirements.txt

@@ -1,10 +1,6 @@
-fastapi==0.109.0
-uvicorn[standard]==0.27.0
-clickhouse-connect==0.8.0
-pydantic==2.5.0
-pydantic-settings==2.1.0
-python-dotenv==1.0.0
-httpx==0.26.0
-numpy>=1.26
-scipy>=1.11
-ja4-common @ file:///app/shared/ja4_common
+fastapi==0.115.0
+uvicorn[standard]==0.34.0
+clickhouse-connect==0.8.12
+jinja2==3.1.4
+python-multipart==0.0.20
+pydantic==2.10.0