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<title>npub12m5exm2uk3xa674cc5r0hlyvccs5xxn7qv83ezuteefv5972nquq4j4szl/esp32-tollgate/main/config.c, branch feature/mining-payment</title>
<subtitle>[no description]</subtitle>
<id>https://upleb.uk/npub12m5exm2uk3xa674cc5r0hlyvccs5xxn7qv83ezuteefv5972nquq4j4szl/esp32-tollgate/atom?h=feature%2Fmining-payment</id>
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<updated>2026-05-18T22:43:11+00:00</updated>
<entry>
<title>feat(mining): integrate mining subsystem into existing modules</title>
<updated>2026-05-18T22:43:11+00:00</updated>
<author>
<name>Your Name</name>
<email>you@example.com</email>
</author>
<published>2026-05-18T22:43:11+00:00</published>
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<id>urn:sha1:beb73a2eeacf7dbe5e292ce6e26a95a933808267</id>
<content type='text'>
- CMakeLists.txt: add 6 mining sources + tcp_transport dependency
- config.h/c: mining_payout_mode_t enum, mining config fields, JSON parsing
- tollgate_main.c: mining init in start_services(), stratum_client_tick in main loop
- tollgate_api.c: GET /mining/job, POST /mining/share, GET /mining/stats endpoints
- session.h/c: payment_method_t enum (CASHU/MINING/BYTES)
- firewall.h/c: sandbox allowlist for mining port + mint URLs
- tollgate_client.h/c: TG_CLIENT_MINING state, mining discovery tag parsing
- captive_portal.c: tabbed UI with Cashu/Mine tabs, live hashrate polling
</content>
</entry>
<entry>
<title>feat: local Nostr relay with relay selection, sync, and integration tests</title>
<updated>2026-05-18T21:02:41+00:00</updated>
<author>
<name>Your Name</name>
<email>you@example.com</email>
</author>
<published>2026-05-18T21:01:19+00:00</published>
<link rel='alternate' type='text/html' href='https://upleb.uk/npub12m5exm2uk3xa674cc5r0hlyvccs5xxn7qv83ezuteefv5972nquq4j4szl/esp32-tollgate/commit/?id=81f2dc52dc42d01c89dff45a5407ec40b8863052'/>
<id>urn:sha1:81f2dc52dc42d01c89dff45a5407ec40b8863052</id>
<content type='text'>
Local Nostr relay (NIP-01) on port 4869 with LittleFS 4MB storage.
All events published locally first, then synced to public relays via REQ-diff.
Relay selection via NIP-11 HTTP probing with NIP-77 scoring and auto-failover.

Components:
- wisp_relay: 16-file local relay (ws_server, storage_engine, sub_manager,
  broadcaster, relay_validator, router, handlers, rate_limiter, nip11,
  deletion, flash_monitor, relay_types)
- esp_littlefs: LittleFS VFS integration (git submodule)
- negentropy: for future NIP-77 binary sync (git submodule)

New source files:
- local_relay.c/h: thin wrapper for relay init/start/publish
- relay_selector.c/h: NIP-11 probe + scoring + auto-failover
- sync_manager.c/h: REQ-diff sync (primary 30min, fallback 6h)

Bug fixes:
- config.c: use-after-free (cJSON_Delete before seed_relays/sync parsing)
- local_relay: moved init to app_main for boot-time start (not gated on STA IP)

Flash layout: 4MB LittleFS partition at 0x500000 for relay_store

Test results (Board B, live hardware):
- Smoke: ping + HTTP 4869 + NIP-11: PASS
- NIP-11 info document: 10/11 PASS
- WS pub/sub (connect, REQ/EOSE, EVENT/OK, CLOSE, concurrent): 6/6 PASS
- Unit tests (relay_validator + relay_selector): 13/13 PASS

Hardware test make targets in physical-router-test-automation/:
- make relay-build, relay-flash-b, relay-test-smoke/nip11/pubsub/sync/full
</content>
</entry>
<entry>
<title>feat: ContextVM (MCP over Nostr) server with full integration</title>
<updated>2026-05-18T19:40:06+00:00</updated>
<author>
<name>Your Name</name>
<email>you@example.com</email>
</author>
<published>2026-05-18T19:40:06+00:00</published>
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<id>urn:sha1:42902a36bc52e009a1e8d3c371741e30a9cb4c33</id>
<content type='text'>
Complete CVM implementation: persistent WebSocket relay listener,
kind 25910 event subscription, MCP protocol handlers, CEP-6 announcements,
10 MCP tools, per-board hardware locks, WiFi EU regulatory fix.

Architecture:
- cvm_server.c: WS relay listener, kind 25910 subscription, MCP dispatch
- mcp_handler.c/h: 10 MCP tools (get_config, set_config, get_balance,
  wallet_send, get_sessions, get_usage, set_payout, set_metric,
  set_price, wallet_melt)
- Responses published via existing WS connection (not new TLS)
- Auth check: only owner npub accepted
- CEP-6: kinds 11316 (server), 11317 (tools), 10002 (relay list)
- WS ping/pong keepalive every 30s, 60s TLS read timeout

Critical fixes:
- WiFi country code DE (ESP-IDF defaults to CN, breaks EU APs)
- Subscription #p filter must be array not string
- Use-after-free: tags_str freed before nostr_event_to_json
- MCP responses via existing WS (ESP32 can't open multiple TLS)
- EVENT msg buffer underflow, WS frame masking, TLS write loop

Per-board hardware locks:
- Lock files in physical-router-test-automation/locks/
- lock-a/b/c, unlock-a/b/c targets in 3 Makefiles
- All hardware-touching targets require board lock

Verified on Board B via relay.primal.net:
- 282 unit tests passing (61 CVM + 60 MCP + 161 existing)
- MCP initialize roundtrip: PASS
- tools/list: PASS
- tools/call get_config: PASS
- tools/call get_balance: PASS
- tools/call set_price: PASS (write operation)
- CEP-6 announcements (11316, 11317, 10002): all accepted by relay
- WiFi STA connection (EnterSSID-2.4GHz): PASS with country code DE
- Board A WiFi confirmed hardware issue (not firmware)
</content>
</entry>
<entry>
<title>Bug fixes: reset_auth clears sessions, port 80 /usage shows real data, metric defaults to milliseconds, fix sys_evt stack overflow</title>
<updated>2026-05-17T09:19:16+00:00</updated>
<author>
<name>Your Name</name>
<email>you@example.com</email>
</author>
<published>2026-05-17T09:19:16+00:00</published>
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<id>urn:sha1:3342c8e7b4f645c75470d3d893d09037a672cfd2</id>
<content type='text'>
</content>
</entry>
<entry>
<title>Phase 7: MCP handler (25 tests), NIP-04 encrypt/decrypt (15 tests), CVM server skeleton</title>
<updated>2026-05-16T23:57:06+00:00</updated>
<author>
<name>Your Name</name>
<email>you@example.com</email>
</author>
<published>2026-05-16T23:57:06+00:00</published>
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<id>urn:sha1:fdf662f8f1a1a3b38fe4d251982fffab8e9bf664</id>
<content type='text'>
- mcp_handler.c/h: 4 tools (get_config, set_config, get_balance, wallet_send)
- nip04.c/h: AES-256-CBC + ECDH with 0x02 compressed pubkey prefix
  - Fixed IV copy bug: mbedTLS AES-CBC modifies IV in-place
  - Base64 encode/decode for ciphertext transport
  - PKCS7 padding
- cvm_server.c/h: Nostr DM listener with FreeRTOS task
- config: cvm_enabled, cvm_relays fields
- 156 total tests passing across 10 test binaries
</content>
</entry>
<entry>
<title>feat(phase6): bytes-based billing - dual metric support</title>
<updated>2026-05-16T23:20:07+00:00</updated>
<author>
<name>Your Name</name>
<email>you@example.com</email>
</author>
<published>2026-05-16T23:20:07+00:00</published>
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<id>urn:sha1:edd125d0e3fe5fe7c0edf30c429723f3b0120c68</id>
<content type='text'>
- session_create_bytes() + session_add_bytes() for bytes-metric sessions
- session_is_expired() dispatches on config metric (bytes vs milliseconds)
- cashu_calculate_allotment() unified dispatcher for both metrics
- tollgate_api discovery/usage/session_event use configured metric
- config: metric field defaults to 'bytes', step_size_bytes=22020096 (21MB)
- 14 new unit tests (148 total passing)
- ASSERT_EQ_UINT64 macro added to test framework
</content>
</entry>
<entry>
<title>Phase 5: Lightning auto-payout with LNURL-pay and NUT-05 melt</title>
<updated>2026-05-16T23:07:15+00:00</updated>
<author>
<name>Your Name</name>
<email>you@example.com</email>
</author>
<published>2026-05-16T23:07:15+00:00</published>
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<id>urn:sha1:cb4bd7d7c10cadcb43f82c09b13ffed744e541f7</id>
<content type='text'>
- New lnurl_pay.c/h: LNURL-pay protocol (GET .well-known/lnurlp + callback)
- New lightning_payout.c/h: threshold-based auto-payout with multi-recipient split
- Extended nucula_wallet bridge with nucula_wallet_melt() (NUT-05)
- Config: payout section with multi-mint, multi-recipient, fee_tolerance
- Default: enabled, TollGate@coinos.io, min_payout=128, min_balance=64
- 18 new unit tests (all passing), 134 total
</content>
</entry>
<entry>
<title>Phase 4: TollGate client detection + auto-payment</title>
<updated>2026-05-16T22:51:39+00:00</updated>
<author>
<name>Your Name</name>
<email>you@example.com</email>
</author>
<published>2026-05-16T22:51:39+00:00</published>
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<id>urn:sha1:78dd599277b8e8b2ddc39a4ae710ec91d737272e</id>
<content type='text'>
- New tollgate_client.c/h: detect upstream TollGate (kind=10021),
  auto-pay via nucula wallet, session monitoring with 20% renewal
- State machine: IDLE→DETECTING→NEEDS_PAY→PAYING→PAID→RENEWING
- Blocking: upstream payment before local services start
- Synchronous wallet init (was async task)
- Client config: enabled, steps_to_buy, renewal_threshold_pct
- Updated PLAN.md with Phases 4-7 (client, payout, bytes, CVM)
- Updated CHECKLIST.md with all new phase items
- 30 new unit tests (all passing), 116 total
</content>
</entry>
<entry>
<title>Phase 3: Nostr identity derivation + wifistr service discovery</title>
<updated>2026-05-16T18:25:05+00:00</updated>
<author>
<name>Your Name</name>
<email>you@example.com</email>
</author>
<published>2026-05-16T18:25:05+00:00</published>
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<id>urn:sha1:4c47ae188b288e7d24bd9566ab3e6a6805d9484f</id>
<content type='text'>
- Add identity.c/h: HMAC-SHA512 derivation from nsec → npub, STA/AP MAC, SSID, AP IP
- Add nostr_event.c/h: NIP-01 event serialization + Schnorr signing (BIP-340)
- Add geohash.c/h: lat/lon to geohash encoding
- Add wifistr.c/h: kind 38787 event builder + WebSocket publish to Nostr relays
- Update config.c/h: nsec-based identity, Nostr relay/geo config, remove static SSID/IP
- Replace custom mbedTLS wallet with nucula library (libsecp256k1)
- Remove wallet.c/h, wallet_persist.c/h (replaced by nucula_lib component)
- Verified on Board A: derived SSID, captive portal, payment, wallet, wifistr publish
</content>
</entry>
<entry>
<title>Phase 3: on-device Cashu wallet with mbedTLS secp256k1 + SPIFFS persistence + PSRAM</title>
<updated>2026-05-16T10:02:55+00:00</updated>
<author>
<name>Your Name</name>
<email>you@example.com</email>
</author>
<published>2026-05-16T10:02:55+00:00</published>
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<id>urn:sha1:133e40c82afb4d7659758b1fa57925ac57af4621</id>
<content type='text'>
- wallet.c/h: secp256k1 ECP primitives (hash_to_curve, scalar_mul, point_add)
- wallet_persist.c/h: SPIFFS persistence with threshold-based write protection
- Fee accounting for swap (input_fee_ppk from /v1/keysets)
- Keyset fetch via /v1/keysets (586 bytes vs 21KB for /v1/keys)
- Wallet API: GET /wallet, POST /wallet/swap, POST /wallet/send
- Payment proofs auto-stored to wallet + persisted on SPIFFS
- PSRAM enabled for large allocations (ESP32-S3 has 8MB)
- Wallet init deferred to dedicated task (avoids sys_evt stack overflow)
- Cashu proof ID buffer size fixed (66 hex chars, not 16)
- HTTP client: added fetch_headers() call for proper response handling
- persist_threshold_sats config parameter (default: 1 sat)
</content>
</entry>
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