Initial: desk + ncantu placeholder + per-project cursor configs

**Motivations:**
- Centraliser les fichiers Cursor (rules, skills, agents, commands, hooks) par user et par projet

**Root causes:**
- N/A

**Correctifs:**
- N/A

**Evolutions:**
- desk: rules, skills-cursor, agents, commands, hooks, argv/hooks/mcp.json
- ncantu: README placeholder
- 4NK_node, algo, builazoo, ia_local, lecoffre_ng, lecoffre_ng_pprod, lecoffre_ng_test: .cursor contents

**Pages affectées:**
- cursor/desk/, cursor/ncantu/, cursor/<project>/

desk/argv.json

@@ -0,0 +1,20 @@
+// This configuration file allows you to pass permanent command line arguments to VS Code.
+// Only a subset of arguments is currently supported to reduce the likelihood of breaking
+// the installation.
+//
+// PLEASE DO NOT CHANGE WITHOUT UNDERSTANDING THE IMPACT
+//
+// NOTE: Changing this file requires a restart of VS Code.
+{
+	// Use software rendering instead of hardware accelerated rendering.
+	// This can help in cases where you see rendering issues in VS Code.
+	// "disable-hardware-acceleration": true,
+
+	// Allows to disable crash reporting.
+	// Should restart the app if the value is changed.
+	"enable-crash-reporter": true,
+
+	// Unique id used for correlating crash reports sent from this instance.
+	// Do not edit this value.
+	"crash-reporter-id": "838e5b2a-0c44-4e24-aa81-ef447b6f9680"
+}