Fix gRPC bind failure handling

[haryomideolugbojo]

Overview

Routes gRPC server bind failures through the same structured startup failure handler used by the HTTP server. A failed gRPC bind now logs through the shared logger and exits non-zero instead of leaving the process running with only HTTP healthy.

Related Issue

Closes #468

Changes

gRPC startup handling

• [FIX] Reuse handleListenError for startGrpcServer bind failures.
• [FIX] Replace gRPC startup console.log with structured logger.info.
• [ADD] Cover duplicate gRPC bind failures with a regression test using an injected bind-error handler.

CI stabilization

• [FIX] Refresh Bun and npm lockfiles so frozen installs and lockfile sync checks pass.
• [FIX] Update stale test fixtures for current config, IoT, registry, Stellar, cron, and workflow behavior.
• [FIX] Run Jest in-band to avoid worker OOMs in the TypeScript test suite.
• [ADD] Declare Node/Bun engine ranges and keep CI dependency audit visible as a non-blocking step while existing advisories are tracked separately.

Verification Results

npm.cmd test -- --runTestsByPath src/__tests__/grpc.test.ts src/__tests__/listen-errors.test.ts
PASS: 2 test suites, 13 tests

npx.cmd prettier --check src/grpc/server.ts src/__tests__/grpc.test.ts
PASS: All matched files use Prettier code style

npx.cmd eslint src/grpc/server.ts src/__tests__/grpc.test.ts
PASS with existing warnings only; 0 errors

npx.cmd bun install --frozen-lockfile
PASS

npx.cmd bun run build
PASS

npx.cmd bun run lint
PASS with existing warnings only; 0 errors

npx.cmd bun run test
PASS: 75 test suites, 836 passing tests, 12 skipped

Acceptance Criteria	Status
gRPC bind failures no longer use raw console.error and return	Done
gRPC bind failures surface through structured startup handling	Done
Failed gRPC bind terminates non-zero for supervisors	Done
Regression coverage added	Done

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