* refactor: deduplicate tool parameter extraction and remove dead stub tools
Delete 4 never-registered stub tools (marketplace, restaurant, ecommerce,
taskrabbit) removing ~625 lines of dead code. Add require_str/require_param
helpers to tool.rs and refactor ~30 call sites across 10 tool files from
4-6 line inline extractions to single-line calls. Consolidate worker HTTP
client with get_json/post_json helpers, reducing boilerplate in 4 methods.
Co-Authored-By: Claude Opus 4.6 <[email protected]>
* fix: return JSON from orchestrator /complete endpoint
The report_complete handler returned bare StatusCode::OK (no body),
which broke the post_json helper that expects a JSON response.
Return {"status": "ok"} for consistency with other worker endpoints.
Addresses review feedback on PR #98.
Co-Authored-By: Claude Opus 4.6 <[email protected]>
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Co-authored-by: Claude Opus 4.6 <[email protected]>
