chore: scaffold minimal NIH-plug template

Based on musiikki/codename-206 patterns. Provides a clean, minimal
skeleton for new nih-plug audio plugins:

- Cargo.toml with pinned NIH-plug deps (same rev as codename-206)
- src/lib.rs — skeleton plugin with Params, Plugin impl, CLAP/VST3
- xtask/ — bundler xtask (cargo xtask bundle)
- bundler.toml — placeholder for bundle name
- .cargo/config.toml — xtask alias
- .gitignore — /target, /nih-plug, /_template
- LICENSE — Apache-2.0
- README.md — build and deploy instructions

Cargo.toml

@@ -0,0 +1,30 @@
+[package]
+name = "nih_plug_template"
+version = "0.1.0"
+edition = "2021"
+authors = ["Your Name <your@email.com>"]
+homepage = "https://github.com/YOUR-USERNAME/YOUR-PLUGIN-NAME"
+description = "A minimal NIH-plug audio plugin"
+license = "Apache-2.0"
+
+[workspace]
+members = ["xtask"]
+
+[lib]
+# `cdylib` is the plugin binary; `lib` (rlib) lets `cargo test` link the unit tests.
+crate-type = ["cdylib", "lib"]
+
+[dependencies]
+# Pinned to the same commit as musiikki/codename-206.
+# Update the `rev` when you want to update NIH-plug.
+nih_plug = { git = "https://github.com/robbert-vdh/nih-plug.git", rev = "f36931f7af4646065488a9845d8f8c2f95252c23", features = ["assert_process_allocs"] }
+nih_plug_egui = { git = "https://github.com/robbert-vdh/nih-plug.git", rev = "f36931f7af4646065488a9845d8f8c2f95252c23" }
+
+[profile.release]
+lto = "thin"
+strip = "symbols"
+
+[profile.profiling]
+inherits = "release"
+debug = true
+strip = "none"