feat(import-fifa17): seed unopenedPackIds as Core entitlements

Carry unopenedPackIds through the importer: Profile model -> Report ->
ApplyPlan. GenericImportRequest now emits entitlements[] (one definition_id
per unopened pack instance, order+duplicates preserved), which Core's import
seeds as unconsumed packs rows in the same transaction. Closes the economy
import gap so a migrated profile's unopened packs become Core entitlements
(feeding purchasegroup/credits/userMassInfo). Idempotency unchanged (import
fingerprint). +1 test; 26 pass, clippy -D warnings clean.

openfut-import-fifa17/src/lib.rs

@@ -632,6 +632,8 @@ pub struct Report {
     pub definitions: DefinitionPlan,
     pub identity: IdentityPlan,
     pub squad: SquadCoverage,
+    /// Unconsumed pack entitlements to seed (from `unopenedPackIds`).
+    pub unopened_pack_ids: Vec<i64>,
 }
 
 impl Report {
@@ -729,6 +731,7 @@ pub fn analyze(
         definitions,
         identity,
         squad,
+        unopened_pack_ids: profile.unopened_pack_ids.clone(),
     }
 }