feat(glossaire): enrich entries and refine glossary navigation

src/content.config.ts

@@ -67,6 +67,19 @@ const glossaire = defineCollection({
     links: z.array(linkSchema).default([]),
 
     kind: z.enum(["concept", "topologie", "diagnostic", "verbe", "paradigme", "doctrine"]),
+    family: z.enum([
+      "concept-fondamental",
+      "scene",
+      "dynamique",
+      "pathologie",
+      "topologie",
+      "meta-regime",
+      "paradigme",
+      "doctrine",
+      "verbe",
+      "dispositif-ia",
+      "tension-irreductible",
+    ]).optional(),
     domain: z.enum(["transversal", "theorie", "cas-ia"]),
     level: z.enum(["fondamental", "intermediaire", "avance"]),
     related: z.array(z.string().min(1)).default([]),