build(core): adopt fork and remove experimental rust backendHEADmaster

- Added a 2026 copyright statement under the original creator's in `license.md` to properly establish new fork logic.
- Updated `readme.md` to explicitly state this repository is a maintained fork.
- Eliminated the `rust_backend/` directory, Actix codebase, and its associated launch configurations.
- Purged all references specifying a Python/Rust/React tri-split from `AGENTS.md` and the frontend `.instructions.md` configuration.

Co-authored-by: Copilot <copilot@github.com>

1 files changed, 0 insertions, 45 deletions

diff --git a/rust_backend/.vscode/launch.json b/rust_backend/.vscode/launch.json
deleted file mode 100644
index cf1efa1..0000000
--- a/rust_backend/.vscode/launch.json
+++ /dev/null
@@ -1,45 +0,0 @@
-{
-    // Use IntelliSense to learn about possible attributes.
-    // Hover to view descriptions of existing attributes.
-    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
-    "version": "0.2.0",
-    "configurations": [
-        {
-            "type": "lldb",
-            "request": "launch",
-            "name": "Debug executable 'rust_backend'",
-            "cargo": {
-                "args": [
-                    "build",
-                    "--bin=rust_backend",
-                    "--package=rust_backend"
-                ],
-                "filter": {
-                    "name": "rust_backend",
-                    "kind": "bin"
-                }
-            },
-            "args": [],
-            "cwd": "${workspaceFolder}"
-        },
-        {
-            "type": "lldb",
-            "request": "launch",
-            "name": "Debug unit tests in executable 'rust_backend'",
-            "cargo": {
-                "args": [
-                    "test",
-                    "--no-run",
-                    "--bin=rust_backend",
-                    "--package=rust_backend"
-                ],
-                "filter": {
-                    "name": "rust_backend",
-                    "kind": "bin"
-                }
-            },
-            "args": [],
-            "cwd": "${workspaceFolder}"
-        }
-    ]
-}
\ No newline at end of file