Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@sap/http/json_store.py`:
- Around line 108-121: The helpers _harden_dir and _harden_file currently catch
and silently ignore OSError; update each except block to either log the
exception at a debug level or (per guidelines) add an explicit inline comment
explaining why swallowing the error is acceptable (e.g., best‑effort hardening
on POSIX only, non‑fatal if chmod fails, no sensitive data at risk), so future
readers know the behavior is intentional; keep the try/except structure but
include the explanatory comment (or a debug log via the module logger) inside
the except.
- Around line 57-60: The get() cache-read currently only treats
OSError/ValueError/KeyError from self._deserialize(...) as a corrupt-cache miss;
include TypeError as well so schema-mismatch errors are caught and treated as a
missing cache entry. Update the except clause in the get() implementation that
wraps self._deserialize(...) to also catch TypeError (i.e., except (OSError,
ValueError, KeyError, TypeError):) so _deserialize() raising TypeError due to
schema mismatch will not propagate.
- Around line 69-73: The current write uses a fixed temporary filename (tmp =
path.with_suffix(path.suffix + '.tmp') / tmp.write_text(...)) which causes
cross-process collisions; change the write logic in the function that calls
path.with_suffix, tmp.write_text, _harden_file and os.replace to create a unique
per-write temp file (e.g. incorporate a UUID/pid/timestamp or use tempfile to
create a unique name in the same directory), write the serialized content to
that unique temp path, call _harden_file on that unique temp, and then
atomically os.replace the unique temp into path to avoid other writers trampling
each other.

In `@test/unit/test_sap_http_json_store.py`:
- Around line 43-46: The test currently builds patches in a loop over targets
(using variables targets, patch, patcher.start(), and _module_patchers) which
violates the "no loops in tests" rule; replace the for-loop with explicit
sequential patch registrations by calling patch(...) for each target
individually, starting each patcher and appending it to _module_patchers (e.g.,
create patcherA = patch(<first-target>, return_value=<first-value>);
patcherA.start(); _module_patchers.append(patcherA); then repeat for the second
target, etc.), ensuring each patch is registered in its own statement rather
than via iteration.

---

Outside diff comments:
In `@test/unit/test_sap_http_token_cache.py`:
- Around line 53-56: The loop that registers patchers (iterating over targets,
creating patcher = patch(target, return_value=return_value), calling
patcher.start(), and appending to _module_patchers) must be replaced with
explicit, sequential patch registration: remove the for-loop and instead create
and start a separate patcher for each target entry and append each to
_module_patchers (e.g., create patcher1 = patch(...); patcher1.start();
_module_patchers.append(patcher1); then patcher2 = patch(...); etc.), keeping
the same target names and return values used in the original targets list so the
test_setup uses explicit, non-looped patcher variables.

---

Nitpick comments:
In `@sap/http/token_cache.py`:
- Around line 41-50: The __all__ export list is unsorted and triggers Ruff
RUF022; sort the entries in the __all__ list alphabetically (e.g., arrange
'FileTokenStore', 'Token', 'TokenStore', '_harden_dir', '_harden_file',
'_sanitize', '_default_cache_dir', 'get_token_store' into proper lexicographic
order) so the module-level __all__ is deterministic and satisfies the linter;
update the __all__ list near the top of token_cache.py (the list containing
'Token', 'TokenStore', 'FileTokenStore', 'get_token_store',
'_default_cache_dir', '_harden_dir', '_harden_file', '_sanitize').