docs: move development guide to dedicated file

CLAUDE.md

@@ -62,3 +62,7 @@ These are duplicated as local constants across files; keep them in sync when cha
 - Each module starts with `local _VERSION = '...'`; bump it when changing that module's behavior.
 - Programs accept `-version`/`--version` and `-help`/`--help` (and `-silent`/`--silent` for the router) via vararg `...`.
 - French comments appear throughout — fine to add either language, match the surrounding file.
+
+## Development setup
+
+See `DEVELOPMENT.md` for local development requirements and setup steps.

DEVELOPMENT.md

@@ -0,0 +1,13 @@
+# Development
+
+Requirements:
+- `just`
+- `luacheck`
+
+After cloning the repository, run:
+
+```sh
+just install
+```
+
+This installs the local Git hooks, including a pre-push hook that runs `just check`.

README.md

@@ -1,19 +1,5 @@
 # Trap's ComputerCraft APIs
 
-## Development
-
-Requirements:
-- `just`
-- `luacheck`
-
-After cloning the repository, run:
-
-```
-just install
-```
-
-This installs the local Git hooks, including a pre-push hook that runs `just check`.
-
 ## Installation
 ```
 wget run https://raw.githubusercontent.com/guillaumearm/cc-libs/master/install.lua
@@ -35,3 +21,6 @@ All servers are automatically started at boot
 - `ping` : ping machines (use `apis/net`)
 - `cube`: cube client for deployment (use `cube help` command for more details)
 - `goo`: turtle program for Just Dire Things goo block processing.
+
+## Development
+See [DEVELOPMENT.md](./DEVELOPMENT.md) for development setup and workflow.