The Linux app segfaulted when opening the encrypted DB. Root cause: on Linux we
overrode package:sqlite3 to the SYSTEM libsqlcipher.so, but sqlcipher_flutter_libs
statically links its own SQLCipher into libsqlcipher_flutter_libs_plugin.so and
exports the sqlite3_* symbols globally. Two SQLite/SQLCipher builds loaded in one
process → symbol clash → segfault at sqlite3_open (before PRAGMA key).
Fix: _openLinuxCipher() now prefers the ABI-matched bundled plugin .so
(libsqlcipher_flutter_libs_plugin.so), falling back to the system lib only if the
plugin isn't present (e.g. host test/CI layouts). Android is unaffected (uses the
bundled Android lib as before).
Verified: Linux desktop build runs without crashing; full suite 37/37, and the
"no plaintext at rest" test now runs (not skipped) on the dev host with system
libsqlcipher, confirming real encryption.
vjrj
e41ec9872b