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- Fix buffer size for ["EVENT",...] wrapper: was 8+event_len+1,
needed 10+event_len+2 (9 char prefix + ] + null). snprintf was
truncating the closing bracket, causing relay JSON parse errors.
- Add write loop in ws_send_text for large payloads that don't fit
in a single esp_tls_conn_write call.
- Change STA auth threshold from WPA2_PSK to WPA3_PSK for
compatibility with WPA3 access points.
- Announcements now successfully stored on relay.primal.net!
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- Full CVM server: persistent WS relay listener, kind 25910 subscription
- MCP protocol handlers: initialize, tools/list, tools/call, ping
- 10 MCP tools: get_config, set_config, get_balance, wallet_send,
get_sessions, get_usage, set_payout, set_metric, set_price, wallet_melt
- CEP-6 announcements via WS (kinds 11316, 11317, 10002)
- Auth check: owner npub only
- Fix: WebSocket client-to-server frame masking (RFC 6455 requirement)
- Fix: Raw event JSON in EVENT wrapper (no re-parsing that breaks sig)
- SNTP init after STA gets IP
- 282 unit tests passing (61 CVM + 60 MCP handler + 161 existing)
- Integration test scaffold: tests/integration/test-cvm.mjs
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metric defaults to milliseconds, fix sys_evt stack overflow
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server skeleton
- 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
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- 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
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- 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
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- 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
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- 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
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+ PSRAM
- 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)
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- Derive unique SSID (TollGate-{MAC4}{MAC5}) and AP IP (10.{b5}.{subnet}.1)
from factory MAC — boards no longer conflict
- Board A: TollGate-377C @ 10.55.85.1, Board B: TollGate-5050 @ 10.80.10.1
- Captive portal detection URIs return 200 with portal HTML (matching
esp32-mesh working approach) instead of 302 redirect
- Dynamic AP IP in portal HTML via __AP_IP__ template substitution
- Supported mints section in portal page (shows mint URL, tap to copy)
- Fixed mint URL to testnut.cashu.space (was stale in SPIFFS)
- DoT reject server on port 853 for DNS-over-TLS fallback
- DNS hijack: NXDOMAIN for all non-A queries, no forwarding for unauthed
- Playwright tests updated for 200 response on detection URIs
- Phase 2 test suite: 20/21 pass (test 22 expiry ping route issue)
- Tests 25-27 deferred to Phase 3 (Board B as second client)
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response)
- cashu.c: dynamic json_buf sizing (was 2048 stack, now heap based on token length)
- cashu.c: strip trailing newline/CR from token input (cashu CLI appends 'Balance: 0 sat')
- cashu.c: esp_crt_bundle_attach for HTTPS to mint API
- cashu.c: esp_http_client_open/write/fetch_headers/read pattern for HTTPS POST
- cashu.c: remove debug b64url_decode logging
- tollgate_api.c: loop httpd_req_recv for full body (was single call, missed TCP segments)
- tollgate_api.c: stack_size=32768 for TLS in httpd handler
- config.c: fix default mint URL from nofee.testnut to testnut.cashu.space
- CMakeLists.txt: add esp-tls dependency for cert bundle
- CHECKLIST.md: updated with infrastructure status and TDD plan
Known issue: device reboots after checkstate returns 966 bytes with status=200.
Crash likely in post-response processing (JSON parse or session create).
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