Discover self-describing mainland equipment rewards

[adrunkhuman]

Summary

• Discover loaded action-ID 2000 rewards inside the existing Rookgaard and Thais planning scopes, and classify complete bundles through the shared equipment evaluator.
• Claim selected rewards through normal navigation and item use, preserve the complete bundle and displaced equipment, and reconstruct interrupted work from storage and inventory.
• Add bounded rejection telemetry, real-map fixture coverage, and documentation for scope and evaluation limits.

Verification

• pwsh -File scripts/test-playerbot-gameplay.ps1 -Focused -MainlandRewards -PickupProgression -EquipmentPurchases -SkipBuild - passed pickup, nested bundle, purchase, rejection, and restart scenarios
• pwsh -File scripts/test-playerbot-gameplay.ps1 -FullNavigation -CorpseLoot -SkipBuild - passed navigation and corpse-loot regressions
• pwsh -File scripts/test-playerbot-gameplay.ps1 -Focused -MainlandRewards -SkipBuild - passed final claim, equip, telemetry, and restart assertions

Limits

The mainland fixture uses the real Thais reward object with a teleported, high-capacity bot. It does not prove normal traversal or realistic capacity pressure. The current seeded Bot One inspects the live rewards but rejects them because none is both useful and currently feasible.

Closes #88.