fix(DiscoveryMountain): resolve crash after install – missing symbols, PSRAM, fetch non-blocking

- manifest V1 -> V2, vendor cJSON, replace roller with dropdown, qsort -> bubble, font -> lvgl_get_text_font
- fix memset(&G,0,0) -> sizeof(G)
- move network I/O off LVGL thread to fetch_task (16384 stack) with PSRAM buffers, raw lwIP sockets HTTP/1.0 handling chunked
- ensure_dir no mkdir /sdcard, make_sd_path safe
- download via raw sockets streaming to file with LRU, PSRAM hdr/recv buffers, progress via lvgl lock
- audio: i2s_controller -> audio_stream, PSRAM inbuf/pcm, ID3 skip, stack 12288
- fetch now 37 seasons/232 episodes (was fallback 6), download 4.3MB OK
- add CRASH_ANALYSIS.md

Co-authored with debugging on 192.168.68.132

Apps/DiscoveryMountain/main/CMakeLists.txt

@@ -0,0 +1,8 @@
+file(GLOB_RECURSE SOURCE_FILES Source/*.c)
+set(CJSON_SOURCE "$ENV{IDF_PATH}/components/json/cJSON/cJSON.c")
+
+idf_component_register(
+    SRCS ${SOURCE_FILES} ${CJSON_SOURCE}
+    INCLUDE_DIRS Source "$ENV{IDF_PATH}/components/json/cJSON"
+    REQUIRES TactilitySDK esp_http_client lwip
+)