docs: improve board guidance and normalise eastmesh mqtt targets

docs/local-builds.md

@@ -2,6 +2,8 @@
 
 This repo uses `uv` for Python tooling and runs PlatformIO through `uv run`.
 
+This page is for building from source. If you just want firmware to flash, start with [Download and Flash Releases](./releases.md) instead.
+
 ## Setup
 
 From the repo root:
@@ -60,65 +62,73 @@ This produces versioned artifacts in `out/`.
 
 ## Supported `repeater_mqtt` Boards
 
+These are the full PlatformIO env names used for local source builds and release artifact naming.
+
 ```text
-T_Beam_S3_Supreme_SX1262_repeater_mqtt
-LilyGo_TLora_V2_1_1_6_repeater_mqtt
-LilyGo_TBeam_1W_repeater_mqtt
-Xiao_C3_repeater_mqtt
-RAK_3112_repeater_mqtt
-Tbeam_SX1262_repeater_mqtt
-Heltec_E290_repeater_mqtt
-Tbeam_SX1276_repeater_mqtt
-Heltec_E213_repeater_mqtt
-Heltec_Wireless_Tracker_repeater_mqtt
-M5Stack_Unit_C6L_repeater_mqtt
-LilyGo_TDeck_repeater_mqtt
-Station_G2_repeater_mqtt
-Station_G2_logging_repeater_mqtt
-LilyGo_T3S3_sx1262_repeater_mqtt
-Meshadventurer_sx1262_repeater_mqtt
-Meshadventurer_sx1268_repeater_mqtt
-Heltec_Wireless_Paper_repeater_mqtt
-heltec_v4_repeater_mqtt
-heltec_v4_tft_repeater_mqtt
-heltec_tracker_v2_repeater_mqtt
-Heltec_v3_repeater_mqtt
-Heltec_WSL3_repeater_mqtt
-LilyGo_T3S3_sx1276_repeater_mqtt
-Heltec_v2_repeater_mqtt
-nibble_screen_connect_repeater_mqtt
-Tenstar_C3_sx1262_repeater_mqtt
-Tenstar_C3_sx1268_repeater_mqtt
-Heltec_ct62_repeater_mqtt
-Xiao_S3_WIO_repeater_mqtt
 Generic_E22_sx1262_repeater_mqtt
 Generic_E22_sx1268_repeater_mqtt
+Heltec_ct62_repeater_mqtt
+Heltec_E213_repeater_mqtt
+Heltec_E290_repeater_mqtt
+Heltec_T190_repeater_mqtt
+heltec_tracker_v2_repeater_mqtt
+Heltec_v2_repeater_mqtt
+Heltec_v3_repeater_mqtt
+heltec_v4_repeater_mqtt
+heltec_v4_tft_repeater_mqtt
+Heltec_Wireless_Paper_repeater_mqtt
+Heltec_Wireless_Tracker_repeater_mqtt
+Heltec_WSL3_repeater_mqtt
+LilyGo_T3S3_sx1262_repeater_mqtt
+LilyGo_T3S3_sx1276_repeater_mqtt
+LilyGo_TBeam_1W_repeater_mqtt
+LilyGo_TDeck_repeater_mqtt
+LilyGo_Tlora_C6_repeater_mqtt
+LilyGo_TLora_V2_1_1_6_repeater_mqtt
+M5Stack_Unit_C6L_repeater_mqtt
+Meshadventurer_sx1262_repeater_mqtt
+Meshadventurer_sx1268_repeater_mqtt
+Meshimi_repeater_mqtt
+nibble_screen_connect_repeater_mqtt
+RAK_3112_repeater_mqtt
+Station_G2_logging_repeater_mqtt
+Station_G2_repeater_mqtt
+T_Beam_S3_Supreme_SX1262_repeater_mqtt
+Tbeam_SX1262_repeater_mqtt
+Tbeam_SX1276_repeater_mqtt
+Tenstar_C3_sx1262_repeater_mqtt
+Tenstar_C3_sx1268_repeater_mqtt
+WHY2025_badge_repeater_mqtt
+Xiao_C3_repeater_mqtt
+Xiao_C6_repeater_mqtt
+Xiao_S3_WIO_repeater_mqtt
 ```
 
 Notes:
 
-- some `*_repeater_mqtt_` experimental C6-style envs exist in the repo but are not listed here as primary EastMesh targets
 - `Xiao_C3_repeater_mqtt` disables the web panel to stay within flash limits
 
 ## Supported `companion_radio_wifi` Boards
 
+These are the full PlatformIO env names used for local source builds and release artifact naming.
+
 ```text
-Xiao_S3_WIO_companion_radio_wifi
-Heltec_v3_companion_radio_wifi
-Heltec_WSL3_companion_radio_wifi
-LilyGo_TBeam_1W_companion_radio_wifi
-RAK_3112_companion_radio_wifi
-LilyGo_TLora_V2_1_1_6_companion_radio_wifi
-ThinkNode_M5_companion_radio_wifi
-Xiao_C3_companion_radio_wifi
 heltec_tracker_v2_companion_radio_wifi
+Heltec_v2_companion_radio_wifi
+Heltec_v3_companion_radio_wifi
 heltec_v4_companion_radio_wifi
 heltec_v4_tft_companion_radio_wifi
-Station_G2_companion_radio_wifi
-ThinkNode_M2_companion_radio_wifi
+Heltec_WSL3_companion_radio_wifi
+LilyGo_TBeam_1W_companion_radio_wifi
+LilyGo_TLora_V2_1_1_6_companion_radio_wifi
 nibble_screen_connect_companion_radio_wifi
-Heltec_v2_companion_radio_wifi
+RAK_3112_companion_radio_wifi
+Station_G2_companion_radio_wifi
 T_Beam_S3_Supreme_SX1262_companion_radio_wifi
+ThinkNode_M2_companion_radio_wifi
+ThinkNode_M5_companion_radio_wifi
+Xiao_C3_companion_radio_wifi
+Xiao_S3_WIO_companion_radio_wifi
 ```
 
 ## Companion WiFi CLI