feat: add n8n APort verification node

[onlyoasis]

Summary

• Adds a publishable n8n-nodes-aport community-node package under examples/agent-frameworks/n8n.
• Adds an APort Verify node that verifies a passport against a policy pack and routes items to Approved, Denied, or Error outputs.
• Adds APort API credentials, input/JSON/key-value context modes, an importable workflow example, and zero-dependency Node.js tests.

Verification

• npm test
• npm pack --dry-run
• Parsed package.json and workflows/aport-verify-routing.json with Node.js JSON.parse

Refs #4 and #31.

Bounty note: this targets the n8n custom node / policy-check scopes in #4 and #31. I am not asking for duplicate payout if the maintainers treat those issues as overlapping. Preferred payout details can be shared privately by @onlyoasis if accepted.

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Route decision-object approvals as approved

When the APort API returns the decision shape used elsewhere in this repo (tools/cli/src/index.js reads result.data?.decision || result.decision and then decision.allow), this code converts the whole { allow: true, ... } object to "[object Object]", so successful verifications are sent to the Denied output. Please handle response.decision.allow === true (and the nested data.decision variant if this node receives the wrapped response) before stringifying the decision value.

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