mdbx-doc: add link to MAX-chat.

mdbx: Create SECURITY.md

mdbx: fix spelling typos (v0.14.1-533-gde55f253).

mdbx: a bit of refining and minor optimization (v0.14.1-532-g6fe748e5).

mdbx-ci: cutoff CI-related stuff into the aside repository.

mdbx: osal_safe_peek_uint32() implementation (v0.14.1-526-g858186d2).

mdbx: mdbx: rework assertion and `ENSURE()` checking at all (v0.14.1-521-gb2ff247e).

mdbx: fix panic/abort/oos in case of bad geometry in a crafted dxb-file (v0.14.1-513-g35671b1e).

mdbx: indirect-called `search_xyz()` tied per each built-in comparator by inlining (v0.14.1-507-gd8f035e0).

mdbx: fix missing error handling of `NtUnmapViewOfSection()` and `munmap()` inside `osal_munmap()`.

mdbx: fix default value typo for MDBX_opt_subpage_limit in mdbx.h

fix(mdbx): check for read only before purging meta head

mdbx: fix stray parenthesis in ascending MDBX_PNL_CONTIGUOUS

mdbx: fix inverted low-part comparison in u128_lt()

mdbx: fix misplaced parentheses in mdbx_txn_renew() txn state check