feat(logs): store stderr and stdout with details in dedicated log messages table

migrations/all.sql

@@ -5,8 +5,17 @@ CREATE TABLE task_runs (
     status          TEXT CHECK(status IN ('pending','running','failed','success'))  NOT NULL DEFAULT 'pending',
     trigger_mode    TEXT CHECK(trigger_mode IN ('manual','webhook','schedule'))  NOT NULL DEFAULT 'manual',
     exit_code       INT,
-    logs            TEXT,
+    runtime_details JSON,
     submitted_at    DATETIME,
     started_at      DATETIME,
     ended_at        DATETIME
 );
+
+DROP TABLE IF EXISTS logs_lines;
+CREATE TABLE logs_lines (
+    id              TEXT PRIMARY KEY,
+    task_run_id     TEXT NOT NULL,
+    kind            TEXT CHECK(kind IN ('Stdout', 'Stderr')),
+    captured_at     INT, -- unix timestamp
+    content         TEXT
+)