Add mermaid diagrams for infrastructure and roadmap visualizations

INFRASTRUCTURE.md

@@ -100,3 +100,55 @@
 * Predictable performance
 * Low-latency data access
 * Independence from cloud providers
+
+```mermaid
+flowchart TB
+  subgraph NET[Internet]
+    W[Web/Clients]
+  end
+
+  subgraph EDGE[Edge]
+    DNS[DNS: betelgeusebytes.io\nA/AAAA -> Ingress IP]
+    LE[cert-manager\nLet's Encrypt]
+    ING[Ingress-NGINX]
+    DNS --> ING
+    LE --> ING
+    W --> DNS
+  end
+
+  subgraph K8S
+    direction TB
+    subgraph N1[Node 1]
+      CP[control-plane + worker]
+      PV1[(local SSD PVs)]
+    end
+    subgraph N2[Node 2]
+      WK[worker + storage-heavy]
+      PV2[(local SSD PVs)]
+    end
+
+    subgraph NS
+      AI[ai: LLM, TEI, Label Studio]
+      VEC[vec: Qdrant]
+      GRAPH[graph: Neo4j]
+      DB[db: Postgres, Redis]
+      BROKER[broker: Kafka]
+      STORE[storage: MinIO]
+      MLOPS[ml/mlops: MLflow, Argo WF, Jupyter]
+      OBS[observability: Grafana/Prom/Loki/Tempo/Alloy]
+      DEV[devops: ArgoCD, Gitea]
+      HAD
+    end
+
+    CP --- WK
+    PV1 --- DB
+    PV2 --- STORE
+    PV2 --- OBS
+    PV2 --- GRAPH
+    PV2 --- VEC
+  end
+
+  ING -->| host routing| NS
+  ING -.TCP (optional).- DB
+  ING -.Bolt (optional).- GRAPH
+

ROADMAP.md

@@ -24,3 +24,48 @@
 * GPU nodes
 * vLLM integration
 * Multi‑project tenancy
+
+
+```mermaid
+
+sequenceDiagram
+  autonumber
+  participant User as User/Client
+  participant Admin as Admin UI (optional)
+  participant KC as Keycloak (OIDC)
+  participant OR as Orchestrator (FastAPI)
+  participant TEI as TEI Embeddings
+  participant QD as Qdrant
+  participant N4 as Neo4j
+  participant LLM as LLM (Ollama/llama.cpp)
+  participant PG as Postgres
+  participant S3 as MinIO (S3)
+
+  User->>Admin: Open app / submit query (optional)
+  Admin->>KC: OIDC login
+  KC-->>Admin: ID/Access token
+  Admin->>OR: Request + Bearer token
+
+  OR->>KC: Verify token / JWKS
+  KC-->>OR: OK
+
+  OR->>PG: Load user/session/config
+  PG-->>OR: context
+
+  OR->>TEI: Embed query/text
+  TEI-->>OR: vector
+
+  OR->>QD: Vector search (hadith/bios)
+  QD-->>OR: top-k passages/IDs
+
+  OR->>N4: Graph query (narrator chain / relations)
+  N4-->>OR: chain/edges
+
+  OR->>LLM: Prompt + retrieved context + schema
+  LLM-->>OR: JSON extraction / reasoning result
+
+  OR->>S3: (optional) store artifacts/provenance
+  S3-->>OR: stored
+
+  OR-->>Admin: Response (JSON + citations/provenance)
+  Admin-->>User: Render result + review tools