chore(workspace): bootstrap Cargo workspace + toolchain pin

.cargo/config.toml

@@ -0,0 +1,8 @@
+[build]
+# wasm32 target enabled via rust-toolchain.toml; no override here
+
+[net]
+git-fetch-with-cli = true
+
+[term]
+verbose = false

.gitignore

@@ -29,3 +29,10 @@ dist-electron/
 .omx
 .worktrees/
 .omx/
+
+# Rust
+/target
+**/*.rs.bk
+Cargo.lock.merge-conflict
+/crates/*/target
+/vendor/agent/target

Cargo.toml

@@ -0,0 +1,36 @@
+[workspace]
+resolver = "2"
+members = [
+    "crates/openpencil-app",
+    "crates/openpencil-shell-core",
+    "crates/openpencil-shell-web",
+    "crates/openpencil-shell-native",
+    "crates/pen-types",
+    "crates/pen-core",
+    "crates/pen-engine",
+    "crates/pen-codegen",
+    "crates/pen-figma",
+]
+exclude = [
+    "vendor/agent",
+    "node_modules",
+]
+
+[workspace.package]
+version = "0.1.0"
+edition = "2021"
+rust-version = "1.80"
+license = "MIT"
+authors = ["ZSeven-W <fini.yang@gmail.com>"]
+repository = "https://github.com/ZSeven-W/openpencil"
+
+[workspace.dependencies]
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+thiserror = "1"
+anyhow = "1"
+tracing = "0.1"
+
+# WASM 边界相关（per kickoff §1.2 黑名单 = 不出现在这里）
+# 故意不在 workspace.dependencies 暴露 tokio / reqwest / agent / pen-agent-cli /
+# pen-server / native-tls —— 这些只在 native-only crate 内部用 dev-deps 或 target-specific deps。

rust-toolchain.toml

@@ -0,0 +1,5 @@
+[toolchain]
+channel = "1.80"
+components = ["rustfmt", "clippy", "rust-src"]
+targets = ["wasm32-unknown-unknown"]
+profile = "default"

rustfmt.toml

@@ -0,0 +1,8 @@
+edition = "2021"
+max_width = 100
+tab_spaces = 4
+hard_tabs = false
+imports_granularity = "Crate"
+group_imports = "StdExternalCrate"
+reorder_imports = true
+newline_style = "Unix"