feat: Implement structured message parsing and display in MessageViewer component

- Added MessageViewer component to display parsed messages in a chat-like format.
- Introduced new Message table in the database to store individual messages with timestamps, roles, and content.
- Updated Session model to include a relation to parsed messages.
- Created transcript parsing logic to convert raw transcripts into structured messages.
- Enhanced processing scheduler to handle sessions with parsed messages.
- Updated API endpoints to return parsed messages alongside session details.
- Added manual trigger commands for session refresh, transcript parsing, and processing.
- Improved user experience with color-coded message roles and timestamps in the UI.
- Documented the new scheduler workflow and transcript parsing implementation.

prisma/migrations/20250625152312_add_message_table/migration.sql

@@ -0,0 +1,14 @@
+-- CreateTable
+CREATE TABLE "Message" (
+    "id" TEXT NOT NULL PRIMARY KEY,
+    "sessionId" TEXT NOT NULL,
+    "timestamp" DATETIME NOT NULL,
+    "role" TEXT NOT NULL,
+    "content" TEXT NOT NULL,
+    "order" INTEGER NOT NULL,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    CONSTRAINT "Message_sessionId_fkey" FOREIGN KEY ("sessionId") REFERENCES "Session" ("id") ON DELETE CASCADE ON UPDATE CASCADE
+);
+
+-- CreateIndex
+CREATE INDEX "Message_sessionId_order_idx" ON "Message"("sessionId", "order");