feat: phase 2 — sauvegarde git (am sync) + transfert machine (am migrate) (closes #66 #68)

src/help.rs

@@ -216,6 +216,43 @@ pub static HELP_SPECS: &[HelpSpec] = &[
             HelpExample { desc: "Resume a finished session.", code: "sessions --resume 20260815_143926_a1b2c3" },
         ],
     },
+    HelpSpec {
+        name: "sync",
+        category: "Commands",
+        usage: "sync {flags}",
+        about: "Push the state (state.json, journal, history) into the configured git repository (issue #66).",
+        search_terms: &["git", "backup", "push", "sync_repo", "sauvegarde"],
+        flags: &[
+            HelpFlag { short: "", long: "--message", value: "MESSAGE", desc: "Commit message (default: 'am sync — state update')" },
+        ],
+        subcommands: &[],
+        parameters: &[],
+        io: None,
+        examples: &[
+            HelpExample { desc: "Commit and push the state.", code: "sync" },
+            HelpExample { desc: "Custom commit message.", code: "sync --message \"daily backup\"" },
+        ],
+    },
+    HelpSpec {
+        name: "migrate",
+        category: "Commands",
+        usage: "migrate {flags} [bundle]",
+        about: "Transfer the installation and state to another machine: export a .amx bundle, import it and verify with doctor (issue #68).",
+        search_terms: &["transfer", "machine", "bundle", "export", "import", "migration"],
+        flags: &[
+            HelpFlag { short: "", long: "--export", value: "", desc: "Export the bundle (default when no bundle path is given)" },
+            HelpFlag { short: "", long: "--output", value: "FILE", desc: "Bundle path for export (default agent-manager-migrate.amx)" },
+        ],
+        subcommands: &[],
+        parameters: &[
+            HelpParam { name: "bundle", typ: "path", desc: "Bundle to import (with confirmation + doctor post-import)" },
+        ],
+        io: None,
+        examples: &[
+            HelpExample { desc: "Export the bundle.", code: "migrate --export --output backup.amx" },
+            HelpExample { desc: "Import on machine B.", code: "migrate backup.amx" },
+        ],
+    },
     HelpSpec {
         name: "stats",
         category: "Commands",