feat(ariadne): add graph core crate

src/ariadne/BUILD

@@ -1,18 +1,3 @@
-load("@rules_rust//rust:defs.bzl", "rust_binary", "rust_library")
-
-rust_library(
-    name = "ariadne_lib",
-    crate_name = "ariadne",
-    srcs = ["src/lib.rs"],
-)
-
-rust_binary(
-    name = "ariadne",
-    crate_name = "ariadne_cli",
-    srcs = ["src/main.rs"],
-    deps = [":ariadne_lib"],
-)
-
 sh_binary(
     name = "extract_and_decompile",
     srcs = ["extract-and-decompile.sh"],

src/ariadne/README.md

@@ -1,27 +0,0 @@
-# Ariadne
-
-Ariadne prepares Ren'Py game source for later analysis.
-
-## Bazel shape
-
-Keep project-owned source under `src/ariadne/`. Keep game-derived files local and ignored under
-`src/ariadne/output/`.
-
-The first target is a shell entry point:
-
-```sh
-bazel run //src/ariadne:extract_and_decompile -- \
-  --game-root /path/to/game-install
-```
-
-The script defaults to `<workspace>/src/ariadne/output`.
-This path stays stable when you run the command from inside `src/ariadne`.
-Use the game installation directory as the game root.
-One run processes all installed season directories.
-Extracted archive source keeps the archive path relative to the game root, so files with the same
-internal path from different season installs do not overwrite each other.
-If `rpycdec` is not available, the script uses `extract-tools.nix` to enter a Nix shell.
-
-Keep the script as a thin orchestration layer.
-Bazel owns stable inputs and wrappers.
-Keep large game files and recovered output outside the build graph.

src/ariadne/bin/BUILD

@@ -0,0 +1,9 @@
+load("@rules_rust//rust:defs.bzl", "rust_binary")
+
+rust_binary(
+    name = "ariadne",
+    crate_name = "ariadne_cli",
+    visibility = ["//src/ariadne:__pkg__"],
+    srcs = ["main.rs"],
+    deps = ["//src/ariadne/core:ariadne_lib"],
+)

src/ariadne/bin/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "ariadne-bin"
+version = "0.1.0"
+edition = "2024"
+
+[[bin]]
+name = "ariadne"
+path = "main.rs"
+
+[dependencies]
+ariadne = { path = "../core" }

src/ariadne/core/BUILD

@@ -0,0 +1,16 @@
+load("@rules_rust//rust:defs.bzl", "rust_library")
+
+rust_library(
+    name = "ariadne_lib",
+    crate_name = "ariadne",
+    crate_root = "lib.rs",
+    visibility = ["//src/ariadne:__subpackages__"],
+    srcs = [
+        "graph.rs",
+        "lib.rs",
+    ],
+    deps = [
+        "//third_party/crates:serde",
+        "//third_party/crates:serde_json",
+    ],
+)

src/ariadne/core/Cargo.toml

@@ -3,6 +3,9 @@ name = "ariadne"
 version = "0.1.0"
 edition = "2024"
 
+[lib]
+path = "lib.rs"
+
 [dependencies]
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"

src/ariadne/core/graph.rs

@@ -0,0 +1,4 @@
+//! In-memory graph model used by Ariadne pipeline stages.
+
+#[derive(Clone, Debug, Default, Eq, PartialEq)]
+pub struct Graph;

src/ariadne/core/lib.rs

@@ -1,3 +1,5 @@
+pub mod graph;
+
 pub fn run() {
     println!("Ariadne");
 }