chore: add AGENTS.md, IDEAS.md, PENDINGS.md, CI workflow, and test infrastructure

[teckedd-code2save]

Summary

adwuma-pa (Edward's AI family care network for Ghanaian elders, built for the Build Small Hackathon) is a hybrid Python + JS repo with a solid README, LICENSE, and rich build documentation (ADWUMA_PA_SPEC_V2.md, CODEX_BUILD_LOG.md, FIELD_NOTES.md, MODAL_RUNBOOK.md, SUBMISSION.md) — but it has zero agent-facing docs and zero automation: no AGENTS.md, IDEAS.md, PENDINGS.md, CI workflow, or tests.

What to do

1. AGENTS.md

Create a contributor/agent guide (~80 lines) covering:

• Tech stack: Python (FastAPI/Modal backend in modal_backend/, app.py), JS/React (package.json), Twi ASR finetuning (finetune/)
• Directory map: modal_backend/, services/, scheduler/, finetune/, db/, config/, scripts/, spaces/, docs/
• How to run locally (Python + Node), key scripts, deployment via Modal (MODAL_RUNBOOK.md reference)
• Code conventions — match the README's tone

2. IDEAS.md

Create a forward-looking roadmap with 15-20 concrete ideas organized by domain (voice-first features for elders, Twi ASR integration building on the existing finetune work, care-network features, deployment improvements). Match the format used in e.g. convoy/IDEAS.md or groundcontrol/IDEAS.md.

3. PENDINGS.md

Document known sharp edges and gotchas (15-25 items) sourced from MODAL_RUNBOOK.md, CODEX_BUILD_LOG.md, FIELD_NOTES.md, and HACKATHON_TODO.md — e.g. Modal cold-start constraints, scheduler/service coupling, Twi ASR finetuning data gotchas, hackathon-time shortcuts that need revisiting.

4. CI workflow

Add .github/workflows/ci.yml:

• Python job: ruff check + pytest (with PYTHONPATH: ${{ github.workspace }} on the test step)
• JS job: npm ci + build/typecheck (if the JS side has a build script)
• Trigger on push to main and PRs to main

5. Test infrastructure

Add baseline pytest tests for core Python modules (app.py, modal_backend/, services/). The repo currently has zero test files (verified via git tree).

Why this matters

• AGENTS.md lets future agent runs (and Edward) operate on this repo safely without re-reading the entire build log
• IDEAS.md turns the hackathon project into a maintainable portfolio piece with a clear roadmap
• PENDINGS.md captures hard-won constraints currently scattered across FIELD_NOTES / CODEX_BUILD_LOG before they're lost
• CI makes regressions visible and is expected for any repo shown to clients or recruiters
• Tests protect the Modal backend and scheduler logic from silent breakage as the project evolves past the hackathon

Acceptance criteria

• AGENTS.md exists at repo root: stack, directory map, run instructions, conventions (~80 lines)
• IDEAS.md exists with 15-20 concrete ideas organized by domain
• PENDINGS.md exists with 15-25 specific gotchas/constraints with severity notes
• .github/workflows/ci.yml runs on push/PR to main and passes on main
• At least 5 baseline pytest tests pass in CI