Accept sidechain resource lifecycle attributes

Author: SqlRush

docs/cc-100-roadmap.md

@@ -42,6 +42,8 @@ M6 补充：microcompact disk cache loader 的 `cached`/`fromCache`/`cacheHit`/`
 
 M6 补充：sidechain/subagent lifecycle state loader 现在接受 `subagent_started`、`agentStarted`、`task_failed`、`sidechainCompleted` 等相邻 subtype aliases，支持 `taskID`/`workerId`/`runId`、`agentName`/`kind`、`resultText`/`finalMessage` 等字段，并在 failed/cancelled subtype 没有显式 status 时自动归一状态。
 
+M6 补充：sidechain/subagent lifecycle content 读取现在接受 JSON:API/resource-style `resource`/`attributes`/`properties` wrapper，外层 resource `id` 可作为 sidechain ID fallback，内层 agent metadata、status/outcome 和 summary 字段仍能恢复到 state/list/resume。
+
 M6 补充：transcript resume 的嵌套 content block 现在接受 `toolUseId`/`toolUseID`、`isError`、`cacheControl`、`cacheReference` 字段别名，并保留 cache edit 的 `cacheReference`。
 
 M6 补充：transcript resume 的 nested content block `id`/`tool_use_id`/`toolUseId` 现在接受 JSON number，并保留为字符串 tool-use ID。

docs/claude-code-go-rewrite-plan.md

@@ -184,6 +184,7 @@ test/parity/                 # golden tests against TS/official behavior
 - 已落地 JSONL/session 基础、resume/search/title 支撑、prompt history lock/buffered flush/field aliases、official subagent transcript layout、agent metadata sidecar/field aliases、sidechain runtime start/append/finish/cancel/fail 和 parent-chain append/finish 初版、sidechain manager orchestration 初版、sidechain manifest 聚合、sidechain state/list/resume/content-field aliases 初版、sidechain resume context builder、sidechain conversation/content-replacement reconstruction、transcript tail/window/metadata/index loaders、byte-budget transcript tail loader、agent-scoped content replacement metadata/record field-alias loading、session-scoped metadata reappend including AI-title/last-prompt/task-summary、transcript line offset index/window/byte-budget-window/parent-chain/resume/tail/byte-budget-tail loaders、extended transcript metadata entries/type/field aliases、transcript message/session UUID field aliases including top-level `messageUuid`/`messageId`/`id` record IDs and `role`/`entry_type`/`messageType`/`createdAt` timestamp aliases、transcript tombstone metadata delete/relink、transcript resume conversation builder、index 文本预览和 AI-title/last-prompt/task metadata 字段、流式 transcript 搜索、session list pagination、remote history token refresh、remote history 全量分页抓取/page-field/event-list/records/entries/eventList/sessionEvents/last-id/cursor/event-id/has-next alias/wrapped-data/links/paging/bare-array/connection/eventConnection/sessionEventsConnection wrapper response/edge-cursor fallback/max-pages 截断状态/before_id 续抓、remote event transcript materialization/fallback field fill/去重追加/duplicate parent guard、remote history 一步 sync 到 transcript、CLAUDE.md/memdir 扫描、team-memory secret guard、compact runner/boundary plan、conversation auto-compact、失败熔断、microcompact/cache 初版、persistent cached microcompact 初版、cache digest structural/rich-content metadata 覆盖、cache version/TTL/prune、in-memory micro cache prune、memory-cache write-through 到磁盘、atomic cache write、坏缓存默认 fail-open、session memory summary/frontmatter aliases/recall 初版、model-ranked recall session-id selection 和 invalid-selection fallback 初版、recall agent alternate/camel response keys/fenced-prose JSON extraction/scalar id parsing/nested/wrapped/collection-alias selection parsing、resume context model-assisted recall 接入、session memory rollup/prune compaction、rollup archive exclusion/merge、rune-safe rollup truncation、resume context + session memory recall、conversation recall 注入、deterministic/model-backed memory extraction 初版、extraction agent fenced-prose JSON/wrapped facts/alternate/structured field/nested source object/nested response/fact kind alias parsing 和 turn-end memory extraction 落盘。
 - 本轮补充：sidechain agent metadata sidecar 读取接受 `type`/`subagentType`/`agentName`/`name`、`workspacePath`/`workspace`/`path`/`directory`、`taskDescription`/`prompt`/`input`/`command`/`title` 等字段别名，避免历史或第三方 subagent sidecar 在 resume/list 时丢失 agent 类型、worktree 路径或任务描述。
 - 本轮补充：sidechain/subagent lifecycle content 读取会递归解包 `payload`/`data`/`body`/`result`/`response`/`metadata` 等 wrapper，嵌套的 subagent ID、status/outcome、summary、agent type、workspace path 和 task description 都可参与 state/list/resume 恢复。
+- 本轮补充：sidechain/subagent lifecycle content 读取现在也接受 JSON:API/resource-style 的 `resource`/`attributes`/`properties` wrapper；外层 resource `id` 可作为 sidechain ID fallback，内层 metadata、status/outcome 和 summary 仍会参与 state/list/resume 恢复。
 - 本轮补充：sidechain/subagent lifecycle 的 ID 等 string-like 字段接受 JSON number 和 Go 数字标量，numeric subagent ID 会保留为字符串并可用于 state/list/resume 查找。
 - 本轮补充：sidechain/subagent lifecycle subtype 现在接受 `subagent_started`、`agentStarted`、`task_failed`、`sidechainCompleted` 等相邻事件名，并从 `taskID`/`workerId`/`runId`、`agentName`/`kind`、`resultText`/`finalMessage` 等字段恢复 state/list/resume 信息；`*_failed`/`*_cancelled` subtype 无显式 status 时会归一到 failed/cancelled。
 - 本轮补充：transcript metadata loader 为 file-history snapshot 和 attribution snapshot 建立 `messageId` 索引，并接受 `message_id`/`messageUuid`/`id` 等字段别名，保留 raw list 的同时支持按消息恢复 snapshot。

docs/first-second-parity-audit.md

@@ -174,6 +174,7 @@ M6 progress now includes:
 - `internal/session`: sidechain state loading now accepts legacy subagent/agent/task start and finish subtype aliases, broader sidechain/subagent ID and type fields, summary aliases, and common running/completed/cancelled/failed status aliases.
 - `internal/session`: sidechain agent metadata sidecar loading now accepts broader agent type, workspace/worktree path, and task-description field aliases such as `subagentType`, `agentName`, `workspacePath`, `taskDescription`, `prompt`, and `title`.
 - `internal/session`: sidechain lifecycle content loading now recurses through wrapper objects such as `payload`, `data`, `result`, `response`, and `metadata`, preserving nested subagent IDs, status, summaries, agent type, worktree path, and task descriptions during state/list/resume recovery.
+- `internal/session`: sidechain lifecycle content loading now also accepts JSON:API/resource-style `resource`/`attributes`/`properties` wrappers, preserving outer resource IDs as sidechain ID fallback while recovering nested metadata, status, and summary fields.
 - `internal/session`: sidechain lifecycle scalar fields now accept JSON number values for IDs and other string-like fields, preserving numeric subagent IDs as strings across state/list/resume recovery.
 - `internal/session`: sidechain runtime finish now canonicalizes status aliases such as `success`, `error`, and `canceled` before writing summary records, keeping sidechain and main transcript lifecycle output stable.
 - `internal/session`: sidechain runtime now rejects duplicate starts while the same sidechain ID is running, and state loading treats a later start as a fresh lifecycle by clearing stale summary/end metadata.

internal/session/sidechain_status.go

@@ -350,7 +350,7 @@ func firstStringFieldDepth(value any, keys []string, depth int) string {
 				}
 			}
 		}
-		for _, key := range []string{"payload", "data", "body", "content", "result", "response", "record", "entry", "item", "event", "metadata", "details"} {
+		for _, key := range []string{"payload", "data", "body", "content", "result", "response", "record", "entry", "item", "event", "resource", "attributes", "properties", "metadata", "details", "value", "output"} {
 			if raw, ok := fields[key]; ok {
 				if value := firstStringFieldDepth(raw, keys, depth+1); value != "" {
 					return value

internal/session/sidechain_test.go

@@ -355,6 +355,58 @@ func TestLoadSidechainStateAcceptsWrappedLifecycleContent(t *testing.T) {
 	}
 }
 
+func TestLoadSidechainStateAcceptsResourceLifecycleAttributes(t *testing.T) {
+	sessionPath := filepath.Join(t.TempDir(), "session.jsonl")
+	sessionID := contracts.ID("sess_1")
+	if err := AppendSidechainMessage(sessionPath, sessionID, "resource-fallback", TranscriptMessage{
+		Type:      "system",
+		UUID:      "start_1",
+		Timestamp: "2026-01-01T00:00:01Z",
+		Subtype:   "sidechain_start",
+		Content: map[string]any{
+			"id":   "resource_agent",
+			"type": "sidechain-lifecycle",
+			"attributes": map[string]any{
+				"agentName":       "architect",
+				"workspacePath":   "/tmp/architect-worktree",
+				"taskDescription": "design the refactor",
+				"lifecycleState":  "active",
+			},
+		},
+	}); err != nil {
+		t.Fatal(err)
+	}
+	if err := AppendSidechainMessage(sessionPath, sessionID, "resource-fallback", TranscriptMessage{
+		Type:      "system",
+		UUID:      "summary_1",
+		Timestamp: "2026-01-01T00:00:02Z",
+		Subtype:   "sidechainCompleted",
+		Content: map[string]any{
+			"properties": map[string]any{
+				"outcome":      "success",
+				"finalMessage": "resource lifecycle complete",
+			},
+		},
+	}); err != nil {
+		t.Fatal(err)
+	}
+
+	states, err := ListSidechainStates(sessionPath, sessionID)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(states) != 1 {
+		t.Fatalf("states = %#v", states)
+	}
+	state := states[0]
+	if state.ID != "resource_agent" || state.Status != SidechainStatusCompleted || state.Summary != "resource lifecycle complete" {
+		t.Fatalf("state = %#v", state)
+	}
+	if state.Metadata.AgentType != "architect" || state.Metadata.WorktreePath != "/tmp/architect-worktree" || state.Metadata.Description != "design the refactor" {
+		t.Fatalf("metadata = %#v", state.Metadata)
+	}
+}
+
 func TestLoadSidechainStateAcceptsNumericLifecycleIDs(t *testing.T) {
 	sessionPath := filepath.Join(t.TempDir(), "session.jsonl")
 	sessionID := contracts.ID("sess_1")