fix: non encrypted notifications

[JeremyTubongbanua]

closes #246

- What I did

• Added support for C SDK to send non-encrypted notifications
• Fixed macro error I was getting regarding atauth's CMake. Figure 1 is the error I was getting
• Added ifdef clause to packages/atauth/src/constants.h
• Wrote test_2b_receive_non_encrypted_notifications test in test_atclient_monitor.c which is an end-to-end test for non-encrypted notifications/monitor
• New "non_encrypted_events" examples
• Added -f to just file's clean command

Figure 1: atauth's -D-DATAUTH_BUILD_EXECUTABLES=1 error

<command-line>: error: macro names must be identifiers
gmake[2]: *** [packages/atauth/CMakeFiles/atauth.dir/build.make:76: packages/atauth/CMakeFiles/atauth.dir/src/apkam_keys.c.o] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:3279: packages/atauth/CMakeFiles/atauth.dir/all] Error 2
gmake: *** [Makefile:166: all] Error 2

- How to verify it

Comments show output from running the new examples and tests

- Description for the changelog
fix: non encrypted notifications

[JeremyTubongbanua]

non_encrypted_notification/main.c

[INFO] 2025-02-19 03:08:47.950046 | connection | Connected
[DEBG] 2025-02-19 03:08:48.108153 | connection |        SENT: "from:12snowboating"
[DEBG] 2025-02-19 03:08:48.148261 | connection |        RECV: "data:_08bd6538-684a-4c85-8b69-96741c3505b8@12snowboating:92c893be-ad04-49a5-af96-54dabd6f2e82"
[DEBG] 2025-02-19 03:08:48.159244 | connection |        SENT: "pkam:BFUgVPPt/fiaRxHCQgKLY7DMFdXl/UhIrbNrQU0ci5aREFWmRZBD7XGb/LoPP8GDxeBOpwAgfZgUyLnTY7rB/FCuHdSMAKa00Yvpjk0Mu43McoDK76uD3exSB1lCKbLiSO0EAjgBr3m6zNdp2lbjH+UjDoIe1L89z/23tUNza/vE8wM3riMx3nBwlaMu6yMrGDySYDIGJVnrdAnrHokkjkSMIIesD77K3FtxMgnG/e6p8lu4WiKf/9bvip/AWWMJ83r/eWxtmtsy/U1uOfyLELWDZRsEAnXWCz8EJBdkCqlYjBbEd1Neh8dn9YcrDuzGCGciFrUXdT463SQId4LllA=="
[DEBG] 2025-02-19 03:08:48.200547 | connection |        RECV: "data:success"
[INFO] 2025-02-19 03:08:48.200570 | main | Params:
[INFO] 2025-02-19 03:08:48.200573 | main |   atkey: 0x631485399e10
[INFO] 2025-02-19 03:08:48.200575 | main |   value: Hello, World!
[INFO] 2025-02-19 03:08:48.200580 | main |   should_encrypt: 0
[DEBG] 2025-02-19 03:08:48.200640 | connection |        SENT: "notify:isEncrypted:false:@12alpaca:non_encrypted_notification.test@12snowboating:Hello, World!"
[DEBG] 2025-02-19 03:08:48.240240 | connection |        RECV: "data:430e03e6-fa94-44f7-9945-4a5dcf442546"
jeremy@atsign:~/GitHub/at_c/examples/desktop/non_encrypted_notification$ ^C

non_encrypted_monitor.c

[INFO] 2025-02-19 03:08:45.173592 | atclient | Missing atServer host or port. Using root.atsign.org:64 atDirectory to find atServer address
[INFO] 2025-02-19 03:08:45.957458 | connection | Connected
[DEBG] 2025-02-19 03:08:46.110434 | connection |        SENT: "from:12alpaca"
[DEBG] 2025-02-19 03:08:46.148856 | connection |        RECV: "data:_066320c5-8dc8-4e32-860f-755bb96a7273@12alpaca:2609b3bb-9a39-4f6e-9335-b46fc1242a1f"
[DEBG] 2025-02-19 03:08:46.158716 | connection |        SENT: "pkam:BmSNxg4///O5w7AhFGPvJznLJ07l+H9gP8jt8GWIbrNuoBJZDXhDt6LxFuhn7Mvf463lmKZukPxhFvT4H8rcLeA+mUkIkkF16ccEKirOXD5ARPtZNOE9Rfq3hvjAWrGzOK5XFq9Bpk1yjpUcqwvKIn3cGpqNEf22/72ZYI5pEh+D6KdOcYFieaIi/Uv01HSUESvJjEIGudwZI7ZtenPg95WvJDCwrZ0SN/BxdBxygmMlrGbsjfVuPmJfOGTgf8YvXRo3ETDy6Sz2G+tpbSJZVuCFd1VKSQ0LuWP0oBICR4Fs/DlCqIjk0iYsxCYd551QumEN9b/kWxLr86xuDlFLyw=="
[DEBG] 2025-02-19 03:08:46.201194 | connection |        RECV: "data:success"
[INFO] 2025-02-19 03:08:46.201212 | atclient | Missing atServer host or port. Using root.atsign.org:64 atDirectory to find atServer address
[INFO] 2025-02-19 03:08:46.511825 | connection | Connected
[DEBG] 2025-02-19 03:08:46.665697 | connection |        SENT: "from:12alpaca"
[DEBG] 2025-02-19 03:08:46.704526 | connection |        RECV: "data:_d4b825d8-f06e-4f87-8734-db37438e312c@12alpaca:ee9eadca-bd99-4c50-b332-224d1b11fb34"
[DEBG] 2025-02-19 03:08:46.714580 | connection |        SENT: "pkam:kpnrf4ViEKmlHYBuQbajzSV9lcD3fIlYBZTDMlgp8DzDQfBC2gzvQaduyj6pCqkUnPJNZFlGdiRPhTkWSYJaa7xzgIWrnL/CUoZh/yFqA6KcET3gjXNrGIWqRnSpiYBvo6tlkjMogmDLgkCfdd8DRJT7OitMEZfToYC4U5weuQ9xVq1NhJtdkD33gxQC6Q5UMxwdkFSbdLVYWO5P4OLAO/2p/SpK5VewmyDz54EYPY72DyQoKAZPLq5K3oZKJj25ZBH0poWC1PO5lTM8W5BJIEAYr1ox9WDnu13WfqniCBYoVFpUbJo1wHYOZft7Vnw6kIp3wiMd5QMFfh9Nt87EkA=="
[DEBG] 2025-02-19 03:08:46.754292 | connection |        RECV: "data:success"
[DEBG] 2025-02-19 03:08:46.754342 | connection |        SENT: "monitor .*"
[ERROR] 2025-02-19 03:08:46.754346 | connection | recv is null. exiting
[DEBG] 2025-02-19 03:08:46.754348 | atclient_monitor |  SENT: "monitor .*"
[DEBG] 2025-02-19 03:08:48.244548 | atclient_monitor |  RECV: "@12alpaca@notification: {"id":"430e03e6-fa94-44f7-9945-4a5dcf442546","from":"@12snowboating","to":"@12alpaca","key":"@12alpaca:non_encrypted_notification.test@12snowboating","value":"Hello, World!","operation":"update","epochMillis":1739934528219,"messageType":"MessageType.key","isEncrypted":false,"metadata":{"encKeyName":null,"encAlgo":null,"ivNonce":null,"skeEncKeyName":null,"skeEncAlgo":null,"sharedKeyEnc":null,"pubKeyHash":null}}"
[INFO] 2025-02-19 03:08:48.244585 | main | Received notification: "Hello, World!"

[JeremyTubongbanua]

This is what the non-encrypted monitor/notification test looks like in test_atclient_monitor.c

[DEBG] 2025-02-19 19:04:43.209225 | test_atclient_monitor 2b | Starting test 2b
[DEBG] 2025-02-19 19:04:43.209316 | connection |        SENT: "monitor f1ba4cc1-508f-4be1-8724-dee85efc4b79"
[ERROR] 2025-02-19 19:04:43.209321 | connection | recv is null. exiting
[DEBG] 2025-02-19 19:04:43.209323 | atclient_monitor |  SENT: "monitor f1ba4cc1-508f-4be1-8724-dee85efc4b79"
[DEBG] 2025-02-19 19:04:43.209326 | test_atclient_monitor 2b | Sending non-encrypted notification..
[DEBG] 2025-02-19 19:04:43.209346 | connection |        SENT: "notify:update:isEncrypted:false:@bob🛠:non-encrypted-key.f1ba4cc1-508f-4be1-8724-dee85efc4b79@alice🛠:non-encrypted-value"
[DEBG] 2025-02-19 19:04:43.211130 | connection |        RECV: "data:b440c7c9-9356-4803-b395-d0e57812752f"
[DEBG] 2025-02-19 19:04:43.211136 | test_atclient_monitor 2b | Sent non-encrypted notification with id b440c7c9-9356-4803-b395-d0e57812752f
[DEBG] 2025-02-19 19:04:43.211855 | atclient_monitor |  RECV: "notification: {"id":"b440c7c9-9356-4803-b395-d0e57812752f","from":"@alice🛠","to":"@bob🛠","key":"@bob🛠:non-encrypted-key.f1ba4cc1-508f-4be1-8724-dee85efc4b79@alice🛠","value":"non-encrypted-value","operation":"update","epochMillis":1739991883210,"messageType":"MessageType.key","isEncrypted":false,"metadata":{"encKeyName":null,"encAlgo":null,"ivNonce":null,"skeEncKeyName":null,"skeEncAlgo":null,"sharedKeyEnc":null,"pubKeyHash":null}}"
[DEBG] 2025-02-19 19:04:43.211879 | test_atclient_monitor 2b | Received non-encrypted notification with id "b440c7c9-9356-4803-b395-d0e57812752f" with expected value "non-encrypted-value"
[DEBG] 2025-02-19 19:04:43.211883 | test_atclient_monitor 2b | Finished test 2b with exit code 0