feat(session): cross-platform session migration and team session archive

CHANGELOG.md

@@ -12,13 +12,42 @@ All notable changes to this project will be documented in this file. See [standa
 - Multi-project management: `role` and `project` together resolve resource namespaces, and project-private learnings are isolated ([#426](https://github.com/Tencent/teamai-cli/pull/426), for [#375](https://github.com/Tencent/teamai-cli/issues/375)).
 - Data partitions auto-migrate a legacy `.teamai`, resume interrupted migrations, smoke-check the clone, and keep a git-ignored backup ([#439](https://github.com/Tencent/teamai-cli/pull/439), for [#374](https://github.com/Tencent/teamai-cli/issues/374)).
 - Teams add their own course-correction words via `sharing.intervention.correctionKeywords` in `teamai.yaml`. The built-in list still covers only Chinese, English and Japanese, so corrections typed in other languages count only once the team configures them. The `UserPromptSubmit` hook now stores a `correction` flag on each dashboard prompt event (for [#564](https://github.com/Tencent/teamai-cli/issues/564)).
+- `teamai session migrate` splits CodeBuddy into two platforms: `codebuddy` (CLI, `~/.codebuddy/projects/...`) and `codebuddy-ide` (the IDE sidebar history). IDE conversations were readable by neither before, so migrating out of CodeBuddy only ever saw CLI sessions; they can now be listed, migrated, and rolled back directly.
+- `teamai session migrate` no longer writes to CodeBuddy IDE when the target is `codebuddy`. The two stores are independent and only the CLI one is listed, so the implicit double-write produced sessions that showed up in the sidebar but could neither be listed nor deleted.
+- User-level session repos: `session list --all`, `session pull --all`, and `session search --all` read across every archived project (plus `_unattributed`), not just the current directory's git identity. `search --all` previously had a dead loop and never actually searched other projects.
+- `session push --all` archives every workspace of one platform (with `--source`, confirmation above 5 sessions, `-y` skips), so a personal team repo can collect sessions from any directory in one run.
+- Session archive keys derive from the session's own native working directory instead of the directory where the command ran. `claude-code` / `codebuddy` / `cursor` recover the native cwd from the first JSONL record; sessions whose workspace is unknowable (codebuddy-ide md5 placeholders) archive under `_unattributed` with an explicit warning.
+- Re-pushing the same session updates the existing entry (dedup key: origin sessionId + author) instead of accumulating `xxx_1` duplicates.
 
 ### 🐛 Bug Fixes
 
 - `teamai import --cache-status` and `--cache-gc` now expose their existing JSON output through the CLI `--json` option.
 - Course-correction matching normalizes prompts and keywords to Unicode NFC, so composed and decomposed accents match. Stored prompt summaries and the 60-second correction window are unchanged. Fixes [#573](https://github.com/Tencent/teamai-cli/issues/573).
 - Course-correction detection matches keywords in space-separated scripts as whole words, so Spanish "segundo" no longer counts as `undo` (for [#564](https://github.com/Tencent/teamai-cli/issues/564)).
 - `teamai doctor` no longer assumes TGit before initialization and now exits with code 1 when any diagnostic check fails.
+- CodeBuddy IDE history roots are detected in both on-disk layouts. The `default` instance keeps `history` one level higher (`<extId>/CodeBuddyIDE/history`), and failing to recognize it skipped every conversation under that instance.
+- CodeBuddy IDE 32-hex conversation ids are reused as-is instead of being hashed a second time. Write and delete computed different ids, so `rollback` reported success while leaving the conversation in place.
+- CodeBuddy CLI project directories are encoded with CodeBuddy's own rule — only path separators become `-`, spaces are kept. The previous catch-all encoding turned `.../teamai cli` into `...-teamai-cli` and such workspaces could never be listed or read.
+- CodeBuddy session titles no longer leak injected prompt text. Both the CLI and the IDE pick the first real user message (skipping `<system-reminder>`-style wrappers) instead of displaying raw prompt XML in `session migrate` listings.
+- `claude-code`, `workbuddy`, and `cursor` titles get the same injected-text cleaning as CodeBuddy; their first "user message" is often a `<system-reminder>`-style wrapper too, which used to become the archived session name.
+- Migrating **into** `claude-code` now writes a `summary` record, so `claude --resume` shows the session's real title instead of the bare session id (e.g. `824ff784`). `readSession` also honors that record, so write→read roundtrips keep the title.
+- Session archive dedup key includes the platform: the same session pushed as `codebuddy` and re-archived after migrating to `claude-code` are two artifacts, not an update. Existing repos where a cross-platform overwrite already happened keep the surviving copy.
+- Git operations in `session push` / `migrate --push` / `pull` no longer crash with a stack trace when the team repo is not a git repository, lacks a remote, is missing, or hits a concurrent `index.lock` — each prints a one-line English error with the repo root and exits 1.
+- A corrupted `sessions/**/_index.json` now prints a warning with the rebuild command instead of silently emptying the dedup key (which used to produce `xxx_1` duplicates on the next push).
+- Interactive prompts treat EOF like an answer of "n": `session push --all` and platform selection print `Cancelled.` and exit 0 instead of hanging into a silent success. `--limit` values that are not positive numbers fall back to the documented default instead of negative-slice trimming. A closed output pipe (`| head`) exits cleanly instead of dumping an EPIPE stack.
+- `session push` remote failures report git's actual `fatal:` line instead of the contentless `Command failed: git push origin` first line.
+- Codex sessions keep their per-message timestamps: `readSession` reads `response_item.timestamp` and `writeSession` stamps records with the message's own time instead of the migration moment (roundtrips through claude-code no longer collapse the timeline). Codex session lookup matches whole ids — a 4-character prefix can no longer resolve to a different session file.
+- Cursor duplicate-write idempotency restored (a malformed UUID regex made `writeSession` mint a new id every time, piling up copies), and cursor/workbuddy titles skip tool-output snippets and injected `ai-title` wrappers.
+- `workbuddy` / `claude-code` / `cursor` `extractMeta` no longer stop scanning at the first injected text block, so a real question after a `<system-reminder>` wrapper becomes the title.
+- Project directory names encode the symlink-resolved cwd for `claude-code`, `codebuddy`, `cursor`, and `workbuddy`. On macOS, writing with `--target-cwd /tmp/x` used to land in a directory nothing could list back, because listing runs with the resolved `/private/tmp/x`.
+- `session push` no longer crashes with a stack trace when the remote push fails (no upstream, read-only HTTP mode, network) — the local save and commit already succeeded, so it prints a warning and keeps them.
+- CodeBuddy IDE workspace hashes resolve symlinks before hashing. On macOS, writing with `/tmp/foo` and listing from `/private/tmp/foo` used to produce two different workspaces, so migrated sessions appeared to vanish.
+- `migrate --push` re-reads exactly the migrated target session ids instead of "the N most recent" of the target directory, which could push unrelated pre-existing sessions while dropping the migrated ones.
+- Pushed session meta no longer lies: `fidelityScore` records the real migration preview score instead of a hardcoded 1.0, and `createdAt` keeps the session's own creation time instead of the push time (the latter also skewed `session search` time-decay ranking).
+- `session push` no longer reports "✓ Pushed N session(s)" when nothing was committed (empty pushes print "No changes to push").
+- `session resume` failures explain that the session may be archived under another project identity and suggest `session search --all` / `--cwd`, instead of a bare uncaught error.
+- 14 Chinese user-facing strings in `session-flow` (console output and thrown errors) are now English, per the project's English-output rule.
+- `codebuddy-ide` no longer silently relabels a session's cwd with the directory passed to `readSession` when the global fallback finds the conversation in a different workspace; the cwd is reported as an `md5:` placeholder so archive keys stay honest.
 - MCP `requires` is resolved from `PATH` (including Windows `PATHEXT`), so `teamai mcp inject` no longer skips servers such as `uvx` on Windows ([#540](https://github.com/Tencent/teamai-cli/pull/540), for [#539](https://github.com/Tencent/teamai-cli/issues/539)).
 - The GitHub and CNB providers resolve their CLI to a launchable absolute path and start it through cross-spawn, so on Windows they no longer answer "installed" while every call fails silently ([#520](https://github.com/Tencent/teamai-cli/pull/520)).
 - `enabledAgents` now also gates CLI builtin deploy, CLAUDE.md-class injects, and last-pull skip-sync targets, so an already-installed tool outside the whitelist is not written to ([#510](https://github.com/Tencent/teamai-cli/issues/510)).

README.md

@@ -234,6 +234,7 @@ Insight into how the team actually uses its AI tools, and a starting point for t
 |------------|---------|---------------|
 | **Usage** | `teamai digest` | Weekly team digest — 7-day success, prompt, active-time, estimated cost, cache, and correction trends, plus lifetime totals. |
 | **Sessions** | `teamai session save` | Privacy-scrubbed per-session summaries (tool sequence, prompt turns, interventions) that feed the digest's Session Highlights. |
+| **Session Sync** | `teamai session migrate` | Move full transcripts between AI tools; archive, search, and restore team sessions (`push` / `pull` / `list` / `resume` / `search`). |
 | **Dashboard** | `teamai dashboard` | Web dashboard showing live sessions and local 7-day trends compared with the prior 7 days. |
 | **KB Health** | `teamai dashboard` → KB Health | Built-in dashboard page reporting knowledge-base usage & health — coverage by type, top recalled entries, silent entries, recall trend, author contributions, and a maintenance console. |
 
@@ -265,6 +266,7 @@ Insight into how the team actually uses its AI tools, and a starting point for t
 | `teamai source` | Manage skill subscription sources (other teams or your org's shared repos) |
 | `teamai remove <type> <name>` | Remove a resource and open MR |
 | `teamai session save` | Record a privacy-scrubbed session summary to a monthly log (`--push` feeds `digest`) |
+| `teamai session migrate/push/pull/list/resume/search/rollback` | Migrate full sessions across AI tools; archive to and restore from the team repo |
 | `teamai digest` | Generate weekly team usage digest |
 | `teamai doctor` | Diagnose configuration issues |
 | `teamai uninstall` | Remove all teamai resources and hooks |

README.zh-CN.md

@@ -234,6 +234,7 @@ teamai recall maintenance --update-quality       # 为过时 skills / docs 生
 |------|------|----------|
 | **用量（Usage）** | `teamai digest` | 团队周报——近 7 天成功率、对话、活跃时长、估算成本、缓存与纠偏趋势，以及历史累计数据。 |
 | **会话（Sessions）** | `teamai session save` | 脱敏的单会话摘要（工具序列、对话轮次、干预次数），喂给周报的 Session Highlights。 |
+| **会话同步（Session Sync）** | `teamai session migrate` | 在 AI 工具间迁移完整会话；团队会话的归档、搜索与恢复（`push` / `pull` / `list` / `resume` / `search`）。 |
 | **看板（Dashboard）** | `teamai dashboard` | Web 看板，展示实时会话，以及本机近 7 天相对前 7 天的趋势。 |
 | **知识库健康（KB Health）** | `teamai dashboard` → KB Health | 内置于看板的报告页面，展示知识库使用情况与健康状态——各类型覆盖率、高频召回条目、沉默条目、召回趋势、作者贡献及维护控制台。 |
 
@@ -265,6 +266,7 @@ teamai recall maintenance --update-quality       # 为过时 skills / docs 生
 | `teamai source` | 管理 skill 订阅源（其他团队或本团队公共仓库） |
 | `teamai remove <type> <name>` | 删除资源并创建 MR |
 | `teamai session save` | 将脱敏后的 session 摘要记录到月度日志（`--push` 可喂给 `digest`） |
+| `teamai session migrate/push/pull/list/resume/search/rollback` | 跨 AI 工具迁移完整会话；归档到团队仓库并从中恢复 |
 | `teamai digest` | 生成团队周报 |
 | `teamai doctor` | 诊断配置问题 |
 | `teamai uninstall` | 移除所有 teamai 资源和 hooks |