Fill in device registry metadata for recently added hardware (#11567)

Audit of the custom_meshtastic_* manifest on the variants backing the
newest boards, against the protobuf HardwareModel enum, the compiled
HW_VENDOR, the board flash size and the artwork actually published by
the web flasher. No support flag changes here - actively_supported is
left exactly as each variant already had it.

ThinkNode M9 had no HW_VENDOR arm, so every M9 has been reporting
PRIVATE_HW while its manifest advertised 131; add the mapping and
rename the slug to the enum name (THINKNODE_M9) it is meant to mirror.

Seeed SenseCAP Mesh-Tracker X1 moves from the PR matrix to release, and
its images entry now points at seeed_mesh_tracker_x1.svg, which is what
the flasher actually ships - the hyphenated name resolved to nothing.

T-Beam BPF, T-Beam 1W and Heltec Wireless Tracker V2 declared the
architecture as "esp32s3"; the value is copied verbatim into the
manifest, and the flash flow matches on the normalized "esp32-s3".

T-Beam BPF and M5Stack Unit C6L both build default_16MB.csv on 16 MB
flash but declared no partition scheme, which leaves the flasher on the
4 MB fallback offsets for a legacy clean install.

Meshnology W10 and W12 gain the artwork and vendor tag that already
exist for them.

src/platform/esp32/architecture.h

@@ -214,6 +214,8 @@
 #define HW_VENDOR meshtastic_HardwareModel_M5STACK_CARDPUTER_ADV
 #elif defined(MESHNOLOGY_W10)
 #define HW_VENDOR meshtastic_HardwareModel_MESHNOLOGY_W10
+#elif defined(ELECROW_ThinkNode_M9)
+#define HW_VENDOR meshtastic_HardwareModel_THINKNODE_M9
 #else
 #define HW_VENDOR meshtastic_HardwareModel_PRIVATE_HW
 #endif