chore: remove all source code comments and internal artifacts

Strip every comment from the source (parsed with the TypeScript compiler so
strings, template literals, regex literals and JSX are never touched), and drop
internal/working artifacts that do not belong in the public repository
(design mockups, internal analysis docs, a stray backup file and an old log).
No functional change: build is green, the full test suite passes.

tests/session-log.test.ts

@@ -8,9 +8,7 @@ import { setLogListener } from "../src/main/logger";
 const tempDirs: string[] = [];
 
 afterEach(() => {
-  // Ensure session log is shut down between tests
   shutdownSessionLog();
-  // Ensure listener is cleared between tests
   setLogListener(null);
   for (const dir of tempDirs.splice(0)) {
     fs.rmSync(dir, { recursive: true, force: true });
@@ -42,11 +40,9 @@ describe("session-log", () => {
     initSessionLog(baseDir);
     const logPath = getSessionLogPath()!;
 
-    // Simulate a log line via the listener
     const { logger } = await import("../src/main/logger");
     logger.info("Test-Nachricht für Session-Log");
 
-    // Wait for flush (200ms interval + margin)
     await new Promise((resolve) => setTimeout(resolve, 500));
 
     const content = fs.readFileSync(logPath, "utf8");
@@ -77,7 +73,6 @@ describe("session-log", () => {
 
     shutdownSessionLog();
 
-    // Log after shutdown - should NOT appear in session log
     const { logger } = await import("../src/main/logger");
     logger.info("Nach-Shutdown-Nachricht");
 
@@ -94,21 +89,16 @@ describe("session-log", () => {
     const logsDir = path.join(baseDir, "session-logs");
     fs.mkdirSync(logsDir, { recursive: true });
 
-    // Create a fake old session log
     const oldFile = path.join(logsDir, "session_2020-01-01_00-00-00.txt");
     fs.writeFileSync(oldFile, "old session");
-    // Set mtime to 30 days ago
     const oldTime = new Date(Date.now() - 30 * 24 * 60 * 60 * 1000);
     fs.utimesSync(oldFile, oldTime, oldTime);
 
-    // Create a recent file
     const newFile = path.join(logsDir, "session_2099-01-01_00-00-00.txt");
     fs.writeFileSync(newFile, "new session");
 
-    // initSessionLog triggers cleanup
     initSessionLog(baseDir);
 
-    // Wait for async cleanup
     await new Promise((resolve) => setTimeout(resolve, 300));
 
     expect(fs.existsSync(oldFile)).toBe(false);
@@ -124,7 +114,6 @@ describe("session-log", () => {
     const logsDir = path.join(baseDir, "session-logs");
     fs.mkdirSync(logsDir, { recursive: true });
 
-    // Create a file from 2 days ago (should be kept)
     const recentFile = path.join(logsDir, "session_2025-12-01_00-00-00.txt");
     fs.writeFileSync(recentFile, "recent session");
     const recentTime = new Date(Date.now() - 2 * 24 * 60 * 60 * 1000);
@@ -147,7 +136,6 @@ describe("session-log", () => {
     const path1 = getSessionLogPath();
     shutdownSessionLog();
 
-    // Small delay to ensure different timestamp
     await new Promise((resolve) => setTimeout(resolve, 1100));
 
     initSessionLog(baseDir);