fix(pilotdeck): build from source

Replace the prebuilt Debian package with the documented source build. Build the web UI and gateway with pnpm, stage the pinned Cua driver, and start the web UI from the wrapper.

README.md

@@ -37,7 +37,7 @@ A custom Nix overlay and flake providing additional packages not found in upstre
 | `radar` | Modern Kubernetes visibility — topology, event timeline, service traffic, resource browsing, Helm management, and GitOps support | Kubernetes |
 | `omniroute` | Unified AI router with 160+ providers, auto fallback, MCP/A2A, OpenAI-compatible APIs | AI LLM Gateway |
 | `open-code-review` | AI-powered code review CLI combining deterministic pipelines with an LLM agent for line-level review comments | AI Coding Agents |
-| `pilotdeck` | Task-oriented AI Agent productivity platform with WorkSpace isolation, white-box memory, and smart routing | AI Agents |
+| `pilotdeck` | Task-oriented AI Agent productivity platform (source-built web UI and gateway) with WorkSpace isolation, white-box memory, and smart routing | AI Agents |
 | `relay-free-llm` | RESTful API to route user prompts to various AI model providers with automatic failover and intent-based routing | AI LLM Gateway |
 | `stakpak` | DevOps AI agent that generates infrastructure code, debugs Kubernetes, configures CI/CD, and automates deployments | AI Agents |
 | `traycer` | Open-source AI orchestration app for agentic coding | AI Coding Agents |
@@ -230,7 +230,7 @@ nix-overlay/
 │   ├── mcp-gateway/            # MCP protocol gateway
 │   ├── omniroute/              # Unified AI router with 160+ providers
 │   ├── open-code-review/       # AI code review CLI (deterministic + LLM agent)
-│   ├── pilotdeck/              # Task-oriented AI Agent productivity platform
+│   ├── pilotdeck/              # Task-oriented AI Agent platform (source-built web UI)
 │   ├── radar/                  # Kubernetes UI (topology, timeline, Helm, GitOps)
 │   ├── relay-free-llm/        # AI model provider routing gateway
 │   ├── skillsmcp/              # MCP server for Agent Skills