[GIT PULL] go-wrsbmkg-telegram: MSG_MEMORY_DIR feature

[Ammar Faizi <ammarfaizi2@gnuweeb.org>]

Introducing a feature to remember sent messages in the Telegram bot.

Designed to prevent the bot from resending messages that have already
been sent. It utilizes a simple file-based memory system to keep track
of sent messages. The bot hashes each message and checks if a file
with that hash exists in a specified memory directory. If the file
exists, the bot skips sending that message. If it does not exist, the
bot creates the file to remember the message.

There are three main changes in this pull request:

1) config: Introduce `MSG_MEMORY_DIR` field
A preparation patch to introduce a feature to remember sent messages.
It is used to avoid resending messages that have already been sent.

2) wrs: Introduce `IsNewMessage()` function.

3) wrs: Introduce `MemDirHouseKeeping()` function.
To avoid blowing up the disk space, introduce `MemDirHouseKeeping()` to
delete saved hashed messages older than 7 days.

Consider pulling this feature.

The following changes since commit 2a0832d3e534143b761654956a3572498f32078e:

  my bad for returning in a loop than continuing (2025-07-13 15:40:22 +0700)

are available in the Git repository at:

  https://github.com/ammarfaizi2/go-wrsbmkg-tg.git tags/memmsg-2025-07-13

for you to fetch changes up to 1fb468818593276a317821bc7c090cf523687931:

  wrs: Introduce `MemDirHouseKeeping()` function (2025-07-13 17:21:32 +0700)

----------------------------------------------------------------
memmsg-2025-07-13

----------------------------------------------------------------
Ammar Faizi (3):
      config: Introduce `MSG_MEMORY_DIR` field
      wrs: Introduce `IsNewMessage()` function
      wrs: Introduce `MemDirHouseKeeping()` function

 config.go                               |   4 +-
 wrs.go                                  | 108 ++++++++++++++++++++++++++++++++++++++++
 wrsbmkg_telegrambot_config.yaml.example |   8 +++
 3 files changed, 119 insertions(+), 1 deletion(-)

-- 
Ammar Faizi