Accept fenced provider remote history pages

Author: SqlRush

docs/cc-100-roadmap.md

@@ -120,7 +120,7 @@ M6 补充：remote history event-list 现在接受 `value`/`values`/`resources`/
 
 M6 补充：remote history response parser 现在会解包 `payload`/`response`/`result`/`body` 等通用响应外壳，外壳内的 event list、pagination、links 会继续递归解析。
 
-M6 补充：remote history response parser 现在也接受 provider-style `choices`/`outputs`/`candidates`/`generations` wrapper，可从 `message.content`、content-block array 和 `content.parts[].text` 中恢复 event page JSON，并保留 pagination 继续驱动 `before_id` 续抓。
+M6 补充：remote history response parser 现在也接受 provider-style `choices`/`outputs`/`candidates`/`generations` wrapper，可从 `message.content`、content-block array 和 `content.parts[].text` 中恢复 event page JSON（包括 fenced `json` code block），并保留 pagination 继续驱动 `before_id` 续抓。
 
 M6 补充：remote history response parser 现在接受 JSON:API `included` collection，会过滤非事件资源，并递归解包 `resource`/`attributes`/`properties` 后用外层 resource id 作为事件 ID fallback。
 
@@ -530,7 +530,7 @@ M7 补充：prompt history `LogEntry` 读取现在接受 `sessionID`/`session`/`
 
 本轮补充：compact runner 的 summary 响应现在也接受 provider-style `choices`/`outputs`/`candidates`/`generations` wrapper，可在构建 compact plan 前从 `message.content`、content-block array 和 `content.parts[].text` 中恢复 visible summary text。
 
-本轮补充：remote history response parser 现在也接受 provider-style `choices`/`outputs`/`candidates`/`generations` wrapper，可从 `message.content`、content-block array 和 `content.parts[].text` 中恢复 event page JSON，并保留 pagination 继续驱动 `before_id` 续抓。
+本轮补充：remote history response parser 现在也接受 provider-style `choices`/`outputs`/`candidates`/`generations` wrapper，可从 `message.content`、content-block array 和 `content.parts[].text` 中恢复 event page JSON（包括 fenced `json` code block），并保留 pagination 继续驱动 `before_id` 续抓。
 
 本轮补充：microcompact disk cache loader 现在读取 Go 默认、camelCase、snake_case 和相邻实现常见字段别名/包装形态，包括 `result`/`data`/`cache`/`value` wrapper、`content`/`text` summary、`cacheKey`/`key`/`hash` digest、cache-hit 别名、计数字段别名/数字字符串、RFC3339/Unix 秒/Unix 毫秒时间字段，以及 `createdAt` + `ttlSeconds`/`ttlMs`/`expiresIn`/`maxAge` 等相对 TTL 推导，提升 cached microcompact 文件在不同实现/版本间的恢复率。
 

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

@@ -214,7 +214,7 @@ test/parity/                 # golden tests against TS/official behavior
 - 本轮补充：remote history 在 JSON:API `relationships.events.data` 只有 resource identifier 时，会继续使用 top-level `included` 中的真实事件 resource，避免把 `{type,id}` 标识符误当作空事件遮蔽完整 payload。
 - 本轮补充：remote history response parser 现在也接受 JSON:API `included` collection，会过滤非事件资源，并递归解包 `resource`/`attributes`/`properties` 后保留外层 resource id 作为事件 ID fallback。
 - 本轮补充：remote history response parser 会解包 `payload`/`response`/`result`/`body` 等通用响应外壳，外壳内的 event list、pagination、links 会继续递归解析。
-- 本轮补充：remote history response parser 现在也接受 provider-style `choices`/`outputs`/`candidates`/`generations` wrapper，可从 `message.content`、content-block array 和 `content.parts[].text` 中恢复 event page JSON，并保留 pagination 继续驱动 `before_id` 续抓。
+- 本轮补充：remote history response parser 现在也接受 provider-style `choices`/`outputs`/`candidates`/`generations` wrapper，可从 `message.content`、content-block array 和 `content.parts[].text` 中恢复 event page JSON（包括 fenced `json` code block），并保留 pagination 继续驱动 `before_id` 续抓。
 - 本轮补充：remote history `SDKEvent` 本体接受 `eventType`/`event_type`/`role` 类型别名、`createdAt`/`created_at` 时间戳别名，以及 `payload`/`data`/`body`/`serializedMessage` message payload 别名；payload 只有 `role`/`content` 时也能 materialize 成 transcript message。
 - 本轮补充：transcript resume 的嵌套 content block 接受 `toolUseId`/`toolUseID`、`isError`、`cacheControl`、`cacheReference` 字段别名，并保留 cache edit 的 `cacheReference`。
 - 本轮补充：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/first-second-parity-audit.md

@@ -143,7 +143,7 @@ M6 progress now includes:
 - `internal/memory`: session-memory recall and relevant-memory model selectors now recurse through GraphQL/JSON:API selection wrappers such as `data`, `payload`, `body`, `resource`, `attributes`, `properties`, `attrs`, `viewer`, `edge`, `node`, `nodes`, and `edges`, preserving model-ranked session IDs and memory paths from API-shaped responses.
 - `internal/memory`: session-memory recall and relevant-memory model selectors now also unwrap provider-style `choices`, `outputs`, `candidates`, and `generations` responses, recovering JSON selection payloads from nested `message.content`, content-block arrays, and `content.parts[].text`.
 - `internal/memory`: model-backed memory fact extraction now also unwraps provider-style `choices`, `outputs`, `candidates`, and `generations` responses, recovering JSON facts payloads from nested `message.content`, content-block arrays, and `content.parts[].text`.
-- `internal/session`: remote-history response parsing now also unwraps provider-style `choices`, `outputs`, `candidates`, and `generations` responses, recovering event page JSON plus pagination from nested `message.content`, content-block arrays, and `content.parts[].text`.
+- `internal/session`: remote-history response parsing now also unwraps provider-style `choices`, `outputs`, `candidates`, and `generations` responses, recovering event page JSON plus pagination from nested `message.content`, content-block arrays, `content.parts[].text`, and fenced `json` code blocks.
 - `internal/session`: project session listing and pagination, prompt-history lock/buffered flush/field aliases, lightweight transcript index/title/text-preview inference, line-offset transcript indexing/window/byte-budget-window/parent-chain/resume/tail/byte-budget-tail loading, AI-title/last-prompt/task/agent/PR/worktree transcript metadata loading and type/field aliases, transcript message/session UUID field aliases, tombstone metadata loading with target/session/reason aliases and delete/relink replay, agent-scoped content replacement metadata/record field-alias loading, session-scoped metadata reappend including AI-title/last-prompt/task-summary, streaming transcript search snippets for resume/search UI, official `subagents/agent-*.jsonl` transcript layout with legacy sidechain listing, agent metadata sidecar read/write/field aliases, sidechain runtime start/append/finish/cancel/fail summary bridging plus parent-chain append/finish, sidechain manager orchestration for spawn/append/finish/cancel/fail/list/resume, sidechain state/list/resume support with content-field aliases, sidechain resume context construction, sidechain conversation and agent-scoped content-replacement reconstruction, transcript tail/window loading and byte-budget tail loading for bounded-memory resume/UI paths, lightweight transcript metadata loading, remote-history token refresh retry, page-field/event-list/records/entries/last-id/cursor/event-id/has-next aliases plus wrapped-data/links/paging/bare-array/keyed-event-map responses, before_id resume, fallback field fill, and duplicate-aware parent linking during transcript materialization.
 - `internal/session`: transcript full loader and line-offset index now accept top-level record UUID aliases such as `messageUuid`, `messageUUID`, `message_id`, `messageId`, and `id`, plus parent message UUID/ID aliases for progress bridge and indexed resume paths.
 - `internal/session`: indexed resume chains now distinguish budget-truncated parents from genuinely missing parents, exposing both markers while preserving bounded transcript reads.

internal/session/remote_history.go

@@ -1060,8 +1060,8 @@ func remoteHistoryProviderTextFromRaw(raw json.RawMessage, depth int, allowScala
 	var text string
 	if err := json.Unmarshal(raw, &text); err == nil {
 		text = strings.TrimSpace(text)
-		if allowScalar && remoteHistoryProviderTextLooksJSON(text) {
-			return text, true
+		if allowScalar {
+			return remoteHistoryProviderJSONPayload(text)
 		}
 		return "", false
 	}
@@ -1081,10 +1081,7 @@ func remoteHistoryProviderTextFromRaw(raw json.RawMessage, depth int, allowScala
 			return "", false
 		}
 		text = strings.Join(parts, "\n")
-		if remoteHistoryProviderTextLooksJSON(text) {
-			return text, true
-		}
-		return "", false
+		return remoteHistoryProviderJSONPayload(text)
 	}
 	if raw[0] != '{' {
 		return "", false
@@ -1119,6 +1116,32 @@ func remoteHistoryProviderTextLooksJSON(text string) bool {
 	return strings.HasPrefix(text, "{") || strings.HasPrefix(text, "[")
 }
 
+func remoteHistoryProviderJSONPayload(text string) (string, bool) {
+	text = strings.TrimSpace(text)
+	if remoteHistoryProviderTextLooksJSON(text) {
+		return text, true
+	}
+	start := strings.Index(text, "```")
+	if start < 0 {
+		return "", false
+	}
+	afterFence := text[start+3:]
+	lineEnd := strings.IndexAny(afterFence, "\r\n")
+	if lineEnd < 0 {
+		return "", false
+	}
+	content := strings.TrimLeft(afterFence[lineEnd:], "\r\n")
+	end := strings.Index(content, "```")
+	if end >= 0 {
+		content = content[:end]
+	}
+	content = strings.TrimSpace(content)
+	if remoteHistoryProviderTextLooksJSON(content) {
+		return content, true
+	}
+	return "", false
+}
+
 func jsonNumberString(data []byte) (string, bool) {
 	decoder := json.NewDecoder(bytes.NewReader(data))
 	decoder.UseNumber()

internal/session/remote_history_test.go

@@ -540,7 +540,7 @@ func TestFetchRemoteHistoryAcceptsProviderResponseWrappers(t *testing.T) {
 		case "choices":
 			wrapper = map[string]any{
 				"choices": []any{map[string]any{
-					"message": map[string]any{"content": string(pageData)},
+					"message": map[string]any{"content": "```json\n" + string(pageData) + "\n```"},
 				}},
 			}
 		case "candidates":