fix(storage): import legacy JSONL session transcripts into SQLite (#2260)

packages/storage/src/__tests__/fixtures/legacy-sessions/corrupt-line-session.jsonl

@@ -0,0 +1,5 @@
+{"id":"legacy-corrupt-0001","workspaceRoot":"/Users/fixture/Library/Application Support/Maka/workspaces/default","cwd":"/Users/fixture/work/corrupt-project","createdAt":1783921000000,"lastUsedAt":1783921010000,"name":"Corrupt Session","isFlagged":false,"labels":[],"isArchived":false,"status":"active","statusUpdatedAt":1783921010000,"hasUnread":false,"backend":"ai-sdk","llmConnectionSlug":"openai-compatible","connectionLocked":true,"model":"demo-model","permissionMode":"ask","schemaVersion":1,"lastMessageAt":1783921010000}
+{"type":"user","id":"msg-user-corrupt-1","turnId":"turn-corrupt-1","ts":1783921005000,"text":"this file is corrupt"}
+{"type":"turn_state","id":"msg-turnstate-corrupt","turnId":"turn-corrupt-1","ts":1783921005000,"status":"running","partialOutputRetained":false}
+{this line is not valid json
+{"type":"turn_state","id":"msg-turnstate-corrupt-done","turnId":"turn-corrupt-1","ts":1783921010000,"status":"completed","partialOutputRetained":false}

packages/storage/src/__tests__/fixtures/legacy-sessions/garbage-tail-session.jsonl

@@ -0,0 +1,3 @@
+{"id":"legacy-garbagetail-1","workspaceRoot":"/Users/fixture/Library/Application Support/Maka/workspaces/default","cwd":"/Users/fixture/work/garbage-project","createdAt":1783925000000,"lastUsedAt":1783925010000,"name":"Garbage Tail","isFlagged":false,"labels":[],"isArchived":false,"status":"active","statusUpdatedAt":1783925010000,"hasUnread":false,"backend":"ai-sdk","llmConnectionSlug":"openai-compatible","connectionLocked":true,"model":"demo-model","permissionMode":"ask","schemaVersion":1,"lastMessageAt":1783925010000}
+{"type":"user","id":"msg-user-garbage-1","turnId":"turn-garbage-1","ts":1783925005000,"text":"hello"}
+this is not json at all

packages/storage/src/__tests__/fixtures/legacy-sessions/header-only-session.jsonl

@@ -0,0 +1 @@
+{"id":"legacy-headeronly-1","workspaceRoot":"/Users/fixture/Library/Application Support/Maka/workspaces/default","cwd":"/Users/fixture/work/headeronly-project","createdAt":1783924000000,"lastUsedAt":1783924010000,"name":"Header Only","isFlagged":false,"labels":[],"isArchived":false,"status":"active","statusUpdatedAt":1783924010000,"hasUnread":false,"backend":"ai-sdk","llmConnectionSlug":"openai-compatible","connectionLocked":true,"model":"demo-model","permissionMode":"ask","schemaVersion":1,"lastMessageAt":1783924010000}

packages/storage/src/__tests__/fixtures/legacy-sessions/marker-session.jsonl

@@ -0,0 +1 @@
+{"type":"session_transcript","sessionId":"legacy-marker-0001","schemaVersion":1}

packages/storage/src/__tests__/fixtures/legacy-sessions/no-turn-state-session.jsonl

@@ -0,0 +1,3 @@
+{"id":"legacy-noturnstate-1","workspaceRoot":"/Users/fixture/Library/Application Support/Maka/workspaces/default","cwd":"/Users/fixture/work/no-turnstate-project","createdAt":1783922000000,"lastUsedAt":1783922010000,"name":"No Turn State","isFlagged":false,"labels":[],"isArchived":false,"status":"active","statusUpdatedAt":1783922010000,"hasUnread":false,"backend":"ai-sdk","llmConnectionSlug":"openai-compatible","connectionLocked":true,"model":"demo-model","permissionMode":"ask","schemaVersion":1,"lastMessageAt":1783922010000}
+{"type":"user","id":"msg-user-noturn-1","turnId":"turn-noturn-1","ts":1783922005000,"text":"hello"}
+{"type":"assistant","id":"msg-assistant-noturn-1","turnId":"turn-noturn-1","ts":1783922009000,"text":"Hello back","modelId":"demo-model"}

packages/storage/src/__tests__/fixtures/legacy-sessions/normal-session.jsonl

@@ -0,0 +1,7 @@
+{"id":"legacy-a1b2c3d4e5f6","workspaceRoot":"/Users/fixture/Library/Application Support/Maka/workspaces/default","cwd":"/Users/fixture/work/demo-project","createdAt":1783929889564,"lastUsedAt":1783929891400,"name":"New Chat","isFlagged":false,"labels":[],"isArchived":false,"status":"active","statusUpdatedAt":1783929891400,"hasUnread":false,"backend":"ai-sdk","llmConnectionSlug":"openai-compatible","connectionLocked":true,"model":"demo-model","permissionMode":"ask","schemaVersion":1,"lastMessageAt":1783929891400}
+{"type":"user","id":"msg-user-0001","turnId":"turn-0001","ts":1783929889572,"text":"hi"}
+{"type":"turn_state","id":"msg-turnstate-running","turnId":"turn-0001","ts":1783929889572,"status":"running","partialOutputRetained":false}
+{"type":"assistant","id":"msg-assistant-0001","turnId":"turn-0001","ts":1783929891000,"text":"Hello! How can I help you today?","modelId":"demo-model"}
+{"type":"token_usage","id":"msg-tokenusage-0001","turnId":"turn-0001","ts":1783929891300,"input":5,"output":12,"total":17,"cacheHitInput":0,"cacheMissInput":5,"costUsd":0.0001,"rawFinishReason":"stop","runtimeSteps":1}
+{"type":"turn_state","id":"msg-turnstate-completed","turnId":"turn-0001","ts":1783929891400,"status":"completed","partialOutputRetained":false}
+{"type":"system_note","id":"msg-systemnote-0001","turnId":"turn-0001","ts":1783929891400,"kind":"session_resume"}

packages/storage/src/__tests__/fixtures/legacy-sessions/sparse-header-session.jsonl

@@ -0,0 +1,4 @@
+{"id":"legacy-sparse-0001","workspaceRoot":"/Users/fixture/Library/Application Support/Maka/workspaces/default","cwd":"/Users/fixture/work/sparse-project","createdAt":1783920000000,"lastUsedAt":1783920010000,"name":"Sparse Session","isFlagged":false,"isArchived":false,"hasUnread":false,"backend":"claude","llmConnectionSlug":"anthropic-compatible","connectionLocked":true,"model":"","schemaVersion":1}
+{"type":"user","id":"msg-user-sparse-1","turnId":"turn-sparse-1","ts":1783920005000,"text":"hello from a sparse session"}
+{"type":"turn_state","id":"msg-turnstate-sparse","turnId":"turn-sparse-1","ts":1783920005000,"status":"running","partialOutputRetained":false}
+{"type":"turn_state","id":"msg-turnstate-sparse-done","turnId":"turn-sparse-1","ts":1783920010000,"status":"completed","partialOutputRetained":false}

packages/storage/src/__tests__/fixtures/legacy-sessions/subagent-parent-session.jsonl

@@ -0,0 +1,2 @@
+{"id":"legacy-subagent-0001","workspaceRoot":"/Users/fixture/Library/Application Support/Maka/workspaces/default","cwd":"/Users/fixture/work/subagent-project","createdAt":1783923000000,"lastUsedAt":1783923010000,"name":"Subagent Child","isFlagged":false,"labels":[],"isArchived":false,"status":"active","statusUpdatedAt":1783923010000,"hasUnread":false,"backend":"ai-sdk","llmConnectionSlug":"openai-compatible","connectionLocked":true,"model":"demo-model","permissionMode":"ask","schemaVersion":1,"lastMessageAt":1783923010000,"subagentParent":{"kind":"subagent","parentSessionId":"legacy-parent-0001","spawnedBy":{"parentRunId":"run-1","parentTurnId":"turn-1","toolCallId":"call-1"},"lifecycle":"foreground"}}
+{"type":"user","id":"msg-user-sub-1","turnId":"turn-sub-1","ts":1783923005000,"text":"hello from a subagent child"}

packages/storage/src/__tests__/fixtures/legacy-sessions/torn-tail-newline-session.jsonl

@@ -0,0 +1,3 @@
+{"id":"legacy-tornnewline-1","workspaceRoot":"/Users/fixture/Library/Application Support/Maka/workspaces/default","cwd":"/Users/fixture/work/torn-project","createdAt":1783926000000,"lastUsedAt":1783926010000,"name":"Torn Newline","isFlagged":false,"labels":[],"isArchived":false,"status":"active","statusUpdatedAt":1783926010000,"hasUnread":false,"backend":"ai-sdk","llmConnectionSlug":"openai-compatible","connectionLocked":true,"model":"demo-model","permissionMode":"ask","schemaVersion":1,"lastMessageAt":1783926010000}
+{"type":"user","id":"msg-user-tornnl-1","turnId":"turn-tornnl-1","ts":1783926005000,"text":"hello"}
+{"type":"user","id":"msg-user-cut","turnId":"turn-cut","ts":1783926009000,"text":"cut off mid-wr

packages/storage/src/__tests__/fixtures/legacy-sessions/torn-tail-session.jsonl

@@ -0,0 +1,8 @@
+{"id":"legacy-a1b2c3d4e5f6","workspaceRoot":"/Users/fixture/Library/Application Support/Maka/workspaces/default","cwd":"/Users/fixture/work/demo-project","createdAt":1783929889564,"lastUsedAt":1783929891400,"name":"New Chat","isFlagged":false,"labels":[],"isArchived":false,"status":"active","statusUpdatedAt":1783929891400,"hasUnread":false,"backend":"ai-sdk","llmConnectionSlug":"openai-compatible","connectionLocked":true,"model":"demo-model","permissionMode":"ask","schemaVersion":1,"lastMessageAt":1783929891400}
+{"type":"user","id":"msg-user-0001","turnId":"turn-0001","ts":1783929889572,"text":"hi"}
+{"type":"turn_state","id":"msg-turnstate-running","turnId":"turn-0001","ts":1783929889572,"status":"running","partialOutputRetained":false}
+{"type":"assistant","id":"msg-assistant-0001","turnId":"turn-0001","ts":1783929891000,"text":"Hello! How can I help you today?","modelId":"demo-model"}
+{"type":"token_usage","id":"msg-tokenusage-0001","turnId":"turn-0001","ts":1783929891300,"input":5,"output":12,"total":17,"cacheHitInput":0,"cacheMissInput":5,"costUsd":0.0001,"rawFinishReason":"stop","runtimeSteps":1}
+{"type":"turn_state","id":"msg-turnstate-completed","turnId":"turn-0001","ts":1783929891400,"status":"completed","partialOutputRetained":false}
+{"type":"system_note","id":"msg-systemnote-0001","turnId":"turn-0001","ts":1783929891400,"kind":"session_resume"}
+{"type":"user","id":"msg-user-torn","turnId":"turn-torn","ts":1783929895000,"text":"this line was cut off mid-wr