Adopts the MCP spec's `instructions` field on createApp() — spec-compliant
clients forward orientation text (item types, ID reuse across tools,
case-sensitive usernames, field sparsity) to the model on initialize,
instead of relying on per-tool description repetition.

@cyanheads/mcp-ts-core ^0.8.20 → ^0.9.1. Brings Workers boot under
nodejs_compat, the cross-vendor portability lint family (this server's
schemas pass clean), SSRF DNS validation in Workers, IPv6 blocklist
broadening, tenant-id boundary check in FileSystemProvider, build-time-only
definition linting, and tasks-capability gating on actual task-tool
registration.

Dep refresh: @types/node ^25.6.2 → ^25.8.0, vitest ^4.1.5 → ^4.1.6.
Synced from upstream: scripts/devcheck.ts bun-outdated parser fix,
scripts/build-changelog.ts summary cap 250 → 350.

Skill syncs: add-tool 2.8 → 2.9, api-errors 1.5 → 1.6, api-linter
1.2 → 1.3, api-workers 1.3 → 1.4, design-mcp-server 2.10 → 2.11,
field-test 2.3 → 2.4, polish-docs-meta 1.7 → 1.8, tool-defs-analysis
1.1 → 1.2.

Tests: 147 passing.