feat: first cut on M0 - base structure of project

Cargo.toml

@@ -0,0 +1,45 @@
+[workspace]
+resolver = "2"
+members = [
+    "crates/bds-core",
+    "crates/bds-editor",
+    "crates/bds-ui",
+    "crates/bds-cli",
+]
+
+[workspace.package]
+edition = "2024"
+version = "0.1.0"
+license = "MIT"
+
+[workspace.dependencies]
+# Foundation
+rusqlite = { version = "0.33", features = ["bundled", "vtab"] }
+refinery = { version = "0.8", features = ["rusqlite"] }
+uuid = { version = "1", features = ["v4", "serde"] }
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+serde_yaml = "0.9"
+chrono = { version = "0.4", features = ["serde"] }
+sha2 = "0.10"
+deunicode = "1"
+thiserror = "2"
+anyhow = "1"
+tokio = { version = "1", features = ["full"] }
+walkdir = "2"
+
+# UI framework
+iced = { version = "0.13", features = ["wgpu", "advanced", "image"] }
+
+# Editor widget
+cosmic-text = "0.12"
+ropey = "1"
+syntect = "5"
+
+# Platform integration (cross-platform)
+muda = "0.15"
+rfd = "0.15"
+
+# Internal crates
+bds-core = { path = "crates/bds-core" }
+bds-editor = { path = "crates/bds-editor" }