feat: scaffold ECC 2.0 Rust TUI — agentic IDE control plane

Initial scaffold for ECC 2.0, a terminal-native agentic IDE built with
Ratatui. Compiles to a 3.4MB single binary.

Core modules:
- Session manager with SQLite-backed state store
- TUI dashboard with split-pane layout (sessions, output, metrics)
- Worktree orchestration (auto-create per agent session)
- Observability with tool call risk scoring
- Inter-agent communication via SQLite mailbox
- Background daemon with heartbeat monitoring
- CLI with start/stop/sessions/status/daemon subcommands

Tech stack: Rust + Ratatui + Crossterm + Tokio + rusqlite + git2 + clap

ecc2/Cargo.toml

@@ -0,0 +1,52 @@
+[package]
+name = "ecc-tui"
+version = "0.1.0"
+edition = "2021"
+description = "ECC 2.0 — Agentic IDE control plane with TUI dashboard"
+license = "MIT"
+authors = ["Affaan Mustafa <me@affaanmustafa.com>"]
+repository = "https://github.com/affaan-m/everything-claude-code"
+
+[dependencies]
+# TUI
+ratatui = "0.29"
+crossterm = "0.28"
+
+# Async runtime
+tokio = { version = "1", features = ["full"] }
+
+# State store
+rusqlite = { version = "0.32", features = ["bundled"] }
+
+# Git integration
+git2 = "0.19"
+
+# Serialization
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+toml = "0.8"
+
+# CLI
+clap = { version = "4", features = ["derive"] }
+
+# Logging & tracing
+tracing = "0.1"
+tracing-subscriber = { version = "0.3", features = ["env-filter"] }
+
+# Error handling
+anyhow = "1"
+thiserror = "2"
+
+# Time
+chrono = { version = "0.4", features = ["serde"] }
+
+# UUID for session IDs
+uuid = { version = "1", features = ["v4"] }
+
+# Directory paths
+dirs = "6"
+
+[profile.release]
+lto = true
+codegen-units = 1
+strip = true