Phase 10a v1.2.0: MIT license, metadata update, full API docs

- Bump idf_component.yml to v1.2.0 with MIT license, targets, tags
- Add LICENSE (MIT) for IDF Component Registry compatibility
- Update CHANGELOG.md with v1.2.0 entries (portal, stratum_client, mint_health, client)
- Update README.md with all 13 modules documented, API reference table
- Add REMAINING_PLAN.md with full execution plan and checklist
- 25 unit tests pass, ESP-IDF build passes

1 files changed, 97 insertions, 0 deletions

diff --git a/REMAINING_PLAN.md b/REMAINING_PLAN.md
new file mode 100644
index 0000000..74ae353
--- /dev/null
+++ b/REMAINING_PLAN.md
@@ -0,0 +1,97 @@
+# TollGate Core — Remaining Execution Plan
+
+**Branch:** `feature/tollgate-core-v2`
+**Created:** 2026-05-23
+**Goal:** Complete all remaining extraction, integration, CI/CD, and publishing steps.
+
+---
+
+## Checklist
+
+### Phase A: Version bump + metadata
+- [ ] A1. Bump `idf_component.yml` to v1.2.0, add MIT license, targets, tags
+- [ ] A2. Create `LICENSE` file (MIT) in `components/tollgate_core/`
+- [ ] A3. Update `CHANGELOG.md` with v1.2.0 entries
+- [ ] A4. Update `README.md` to document all 13 modules
+- [ ] A5. Run `make test-unit` + `idf.py build`
+- [ ] A6. Commit + push
+
+### Phase B: Re-sync component to NerdQAxePlus
+- [ ] B1. Copy 4 new source pairs + updated files to NerdQAxePlus
+- [ ] B2. Verify `TOLLGATE=1 BOARD=NERDQAXEPLUS idf.py build`
+- [ ] B3. Commit + push to NerdQAxePlus develop
+
+### Phase C: Full wallet integration on NerdQAxePlus (Phase 9c)
+- [ ] C1. Copy `nucula_lib/` component and `nucula_src/` submodule to NerdQAxePlus
+- [ ] C2. Update NerdQAxePlus top-level CMakeLists to REQUIRES `nucula_lib`
+- [ ] C3. Replace `spend_proofs` stub with `nucula_wallet_receive()`
+- [ ] C4. Add `nucula_wallet_init(mint_url)` to `tollgate_nerdqaxe_init()`
+- [ ] C5. Wire `get_hashrate` to actual ASIC stats
+- [ ] C6. Wire `on_share_accepted` to real share tracking
+- [ ] C7. Verify build
+- [ ] C8. Commit + push
+
+### Phase D: NerdQAxePlus UI integration (Phase 9d)
+- [ ] D1. Add POST `/api/tollgate/pay` endpoint accepting Cashu tokens
+- [ ] D2. Add minimal captive portal HTML page
+- [ ] D3. Add GET `/api/tollgate/wallet` and POST `/api/tollgate/wallet/send` endpoints
+- [ ] D4. Update portal screen: wallet balance, session count, payment QR
+- [ ] D5. Add session status to mining screen
+- [ ] D6. Verify build, flash, test payment flow
+- [ ] D7. Commit + push
+
+### Phase E: Ansible CI/CD workflow (Phase 10b)
+- [ ] E1. Create ansible role `ci_runner` with tasks for Docker + ESP-IDF
+- [ ] E2. Create Python nostr relay listener script
+- [ ] E3. Create systemd service unit for listener
+- [ ] E4. Create ansible playbook `20-ci-runner.yml`
+- [ ] E5. Create ansible playbook for localhost hardware runner
+- [ ] E6. Test ansible deployment
+
+### Phase F: Publish to IDF Component Registry (Phase 10c)
+- [ ] F1. Create `docs/PUBLISHING.md` with step-by-step upload instructions
+- [ ] F2. Run `compote registry login` (manual — requires browser OAuth)
+- [ ] F3. Run `compote component upload --dry-run` to validate
+- [ ] F4. Run `compote component upload` to publish v1.2.0
+- [ ] F5. Verify with clean test project
+- [ ] F6. Commit + push updated metadata
+
+### Phase G: Hardware smoke test
+- [ ] G1. Flash Board A with updated firmware
+- [ ] G2. Run `TOLLGATE_IP=10.185.47.1 BOARD=a make test-smoke`
+- [ ] G3. Commit any fixes
+
+---
+
+## Execution Order
+
+```
+A → G → B → C → D → E → F
+```
+
+Phase A is quick metadata updates. G verifies on hardware. B syncs to NerdQAxePlus.
+C adds the wallet. D adds the UI. E sets up CI/CD. F publishes.
+
+---
+
+## Architecture Notes
+
+### CI/CD Design
+- **Runner:** Docker container using `espressif/idf:latest` image
+- **Trigger:** Python WebSocket client subscribed to `wss://ngit.orangesync.tech`
+  for NIP-34 git state events (kind 30617)
+- **Pipeline:** clone from GRASP → `idf.py build` → `make test-unit` → report
+- **Hardware tests:** Run on localhost (dev machine) where boards are connected
+- **Reporting:** Build status posted as nostr badge event (kind 1985)
+
+### Wallet Integration Design
+- `nucula_lib` provides C API: `nucula_wallet_init()`, `nucula_wallet_receive()`, `nucula_wallet_send()`, `nucula_wallet_balance()`
+- `spend_proofs` callback in `tollgate_platform_t` maps directly to `nucula_wallet_receive()`
+- Wallet proofs persisted to NVS automatically by nucula
+- `libsecp256k1` already compiled in NerdQAxePlus build with Schnorr + Extrakeys modules
+
+### Component Registry
+- License: MIT (required for upload)
+- Namespace: GitHub username (auto-created on first login)
+- Version immutability: once uploaded, cannot overwrite — must bump version
+- `compote` CLI installed at `~/.local/bin/compote` (v3.0.2)