Fix build: Replace invalid cache tool with cache-memory

[Copilot]

Build failed at compilation with 146/147 workflows compiled due to invalid MCP tool configuration in functional-pragmatist.md.

Issue

The workflow used cache: as a tool, which doesn't exist in the built-in tools list. Valid built-in tools include cache-memory, not cache.

# Before - invalid
tools:
  cache:
    enabled: true
    keys:
      - "last_processed_package"
      - "processed_packages"

Changes

• Replace cache: with cache-memory: true in functional-pragmatist.md
• Regenerate lock file with correct configuration

# After - valid
tools:
  cache-memory: true

The workflow's existing cache_get and cache_set bash commands remain unchanged - they're provided by the cache-memory tool at runtime.

Original prompt

Reference: https://github.com/githubnext/gh-aw/actions/runs/21549632299/job/62096625855

Fix build

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