"free heap 5.8MB" in the crash log was PSRAM and masked the actual
internal-RAM exhaustion. git_sync's publish/commit/push lines now
carry the MALLOC_CAP_INTERNAL reading, and boot brackets the palette
file-list build with it — small Strings are forced internal by the
16 KB SPIRAM malloc threshold, so the 1098-path list is a suspected
~60-70 KB DRAM consumer competing with Wi-Fi/TLS; the log decides
whether interning into one PSRAM buffer is worth it.