refactor: 迁移至 bashly CLI 与功能域模块结构

- CLI 定义迁移至 src/bashly.yml（bashly 1.4 生成参数解析），入口收敛为 src/root_command.sh
- 源码按功能域重组：config/storage/integrate/media/pipeline，消除扁平散落
- 新增零依赖测试框架 tests/（123 用例）与 CI 流水线（lint + test + build + 产物一致性）
- build.sh 支持版本单一来源注入与 --check 产物校验；新增 lint.sh（bash -n + shellcheck 零容忍）
- 删除旧单文件 media_organizer.sh 与旧扁平模块

tests/cases/integrate/ai.sh

@@ -0,0 +1,83 @@
+# ============================================================================
+# AI 批处理模块测试（src/lib/ai.sh）
+# ============================================================================
+
+setup() {
+  AI_BATCH_SIZE=50
+  AI_BATCH_KEYS_SEARCH=()
+  AI_BATCH_KEYS_SPECIAL=()
+  AI_BATCH_KEYS_ARTIST=()
+  AI_BATCH_KEYS_MATCH=()
+  PENDING_AI_SEARCH=()
+  PENDING_AI_SPECIAL=()
+  PENDING_AI_ARTIST=()
+  PENDING_AI_MATCH=()
+}
+
+# ai_extract_json：直接 JSON
+test_ai_extract_direct_json() {
+  assert_eq '{"a": 1}' "$(ai_extract_json '{"a": 1}')"
+}
+
+# ai_extract_json：```json 围栏
+test_ai_extract_fenced_json() {
+  local input=$'```json\n{"a": 1}\n```'
+  assert_eq '{"a": 1}' "$(ai_extract_json "$input")"
+}
+
+# ai_extract_json：异行 <thinking> 标签
+test_ai_extract_thinking_block() {
+  local input=$'<thinking>分析中</thinking>\n{"a": 1}'
+  assert_eq '{"a": 1}' "$(ai_extract_json "$input")"
+}
+
+# ai_extract_json：同行 <thinking> 标签（awk 行级处理无法吞掉，需 sed 预处理）
+test_ai_extract_thinking_inline() {
+  assert_eq '{"a": 1}' "$(ai_extract_json '<thinking>分析中</thinking>{"a": 1}')"
+}
+
+# ai_extract_json：「思考：」前缀
+test_ai_extract_thinking_prefix() {
+  assert_eq '{"a": 1}' "$(ai_extract_json '思考：这是答案。{"a": 1}')"
+}
+
+# ai_extract_json：非 JSON 返回空
+test_ai_extract_invalid_returns_empty() {
+  assert_eq "" "$(ai_extract_json 'not json at all')"
+  assert_eq "" "$(ai_extract_json '')"
+}
+
+# build_ai_input_json：三类条目构造正确的 JSON 结构
+test_ai_input_json_structure() {
+  PENDING_AI_SEARCH["/m/电影 (2020).mkv"]="movie	dir"
+  PENDING_AI_SPECIAL["123|Menu01"]="Show|01:Menu; 02:CM"
+  PENDING_AI_ARTIST["/m/song.flac"]="A; B|Album|" # 值格式：artists|album|rel_dir
+  local json rc=0
+  build_ai_input_json json
+  echo "$json" | jq -e '
+    (.search_entries | length) == 1 and
+    (.special_entries | length) == 1 and
+    (.artist_entries | length) == 1 and
+    (.match_entries | length) == 0
+  ' >/dev/null || rc=$?
+  assert_eq '0' "$rc" "JSON 结构校验"
+  assert_eq "/m/电影 (2020).mkv" "$(echo "$json" | jq -r '.search_entries[0].file')"
+  assert_eq "123" "$(echo "$json" | jq -r '.special_entries[0].show_id')"
+  assert_eq "A; B" "$(echo "$json" | jq -r '.artist_entries[0].artists')"
+  # 副作用：keys 数组在调用方可见（修复子 shell 丢失 bug 后）
+  assert_eq '1' "${#AI_BATCH_KEYS_SEARCH[@]}"
+  assert_eq '1' "${#AI_BATCH_KEYS_SPECIAL[@]}"
+  assert_eq '1' "${#AI_BATCH_KEYS_ARTIST[@]}"
+}
+
+# build_ai_input_json：批大小上限
+test_ai_input_json_batch_limit() {
+  AI_BATCH_SIZE=2
+  PENDING_AI_SEARCH["/a1.mkv"]="movie	"
+  PENDING_AI_SEARCH["/a2.mkv"]="movie	"
+  PENDING_AI_SEARCH["/a3.mkv"]="movie	"
+  local json
+  build_ai_input_json json
+  assert_eq '2' "$(echo "$json" | jq '.search_entries | length')"
+  assert_eq '2' "${#AI_BATCH_KEYS_SEARCH[@]}"
+}