Projektrahmen: Cargo-Workspace, README und PLAN

Workspace mit sechs Crates (tb-frontend, tb-vm, tb-runtime, tb-ui,
tb-cli, tb-ide) als Geruest fuer die Re-Implementierung des
DOS-BASIC-Dialekts. Binaries: tbdos (IDE/TUI) und tbdosc
(Standalone-Compiler). PLAN.md dokumentiert Phasen, Explorations-
schritte und die Abwaegung der VM-/Runtime-Optionen (Entscheidung:
eigene Bytecode-VM, TBVM).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Cargo.toml

@@ -0,0 +1,37 @@
+[workspace]
+resolver = "2"
+members = [
+    "crates/tb-frontend",
+    "crates/tb-vm",
+    "crates/tb-runtime",
+    "crates/tb-ui",
+    "crates/tb-cli",
+    "crates/tb-ide",
+]
+
+[workspace.package]
+version = "0.1.0"
+edition = "2021"
+license = "MIT"
+repository = ""
+authors = ["Georg Bauer"]
+
+[workspace.dependencies]
+# UI / Terminal
+ratatui = "0.29"
+crossterm = "0.28"
+
+# Allgemein
+anyhow = "1"
+thiserror = "2"
+log = "0.4"
+
+# Interne Crates
+tb-frontend = { path = "crates/tb-frontend" }
+tb-vm = { path = "crates/tb-vm" }
+tb-runtime = { path = "crates/tb-runtime" }
+tb-ui = { path = "crates/tb-ui" }
+
+[profile.release]
+lto = true
+codegen-units = 1