CFLAGS include-injection cascades through the whole esp-idf component
graph (arpa/inet.h -> sys/ioctl.h -> ...), so path 1 is out. Decide
path 2: libgit2 as an esp-idf CMake component with USE_HTTPS=mbedTLS,
which fixes the includes and the TLS backend together.
libgit2 C cross-compiles for xtensa; blocker is missing esp-idf lwIP
headers (arpa/inet.h) because libgit2-sys builds standalone. PSRAM
enabled and hardware-verified.
Postmortem + ADR-004 outcome note + risk-table update: gitoxide has no
HTTP(S) push, so v0.1 falls back to libgit2; the on-device libgit2 <->
mbedtls cross-compile is the next gate.
New docs/postmortems/ folder. The bench card (133 GB SDXC) rejects CMD59
(SPI-mode CRC) as illegal; CMD0/CMD8 succeed, so wiring and firmware are
proven and the fix is a compliant card. Captures the root cause, the
keep-CRC-required decision, and the reusable findings (EPD bus lock, LFN
requirement, R1-byte diagnostic) before the work pauses for hardware.
