[discourse-gatekeeper] Migrate charm docs

[github-actions]

This pull request was autogenerated by discourse-gatekeeper to migrate existing documentation from server to the git repository.

[github-actions]

Test coverage for fbeeeaa

Name                       Stmts   Miss Branch BrPart  Cover   Missing
----------------------------------------------------------------------
src/charm.py                 349     12     80      8    95%   404, 418-419, 669, 710-711, 802->818, 804->813, 813->818, 826-827, 866, 899->exit, 937-943
src/database_observer.py      32      0      4      0   100%
src/s3_observer.py            17      0      0      0   100%
src/saml_observer.py          14      0      0      0   100%
src/smtp_observer.py          15      0      0      0   100%
src/state.py                  73      0      8      0   100%
----------------------------------------------------------------------
TOTAL                        500     12     92      8    97%

Static code analysis report

Run started:2025-01-30 08:51:42.707325

Test results:
  No issues identified.

Code scanned:
  Total lines of code: 3117
  Total lines skipped (#nosec): 2
  Total potential issues skipped due to specifically being disabled (e.g., #nosec BXXX): 0

Run metrics:
  Total issues (by severity):
  	Undefined: 0
  	Low: 0
  	Medium: 0
  	High: 0
  Total issues (by confidence):
  	Undefined: 0
  	Low: 0
  	Medium: 0
  	High: 0
Files skipped (0):