fix(tc): address failing typechecker by completing test interface

[Hweinstock]

Problem

typechecker failing. https://github.com/aws/agentcore-cli/actions/runs/33786276059/job/100751718167

Solution

• add missing method on test interface.

Verification

bun run typecheck && bun test src/core/project/backends/ passes.

[agentcore-devx-automation]

Claude Security Review: no high-confidence findings. (run)

[agentcore-devx-automation]

AgentCore Harness Review

Verdict: Looks good

Minimal, correct fix: the fake ProjectBackend in buildDeploy.screen.test.tsx was missing resolveProjectResources, which is required by the interface (see src/core/project/backends/types.ts:41). The added stub returning [] matches the same pattern used in the sibling test files (deploy/index.test.ts, build/index.test.ts, invoke/index.test.tsx, status/index.test.ts). No production code, telemetry, or mocking concerns apply here. Safe to merge.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.13%. Comparing base (2e30e1f) to head (8c631f6).

Additional details and impacted files

@@            Coverage Diff            @@
##           refactor    #2188   +/-   ##
=========================================
  Coverage     97.13%   97.13%           
=========================================
  Files           541      541           
  Lines         37618    37618           
=========================================
  Hits          36542    36542           
  Misses         1076     1076           

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