feat: initial release v0.1.0
- KKTerm-style UI: Activity Rail, Connection Sidebar, Tabbed Workspace - Serial Port connection (System.IO.Ports) - SSH connection (SSH.NET, password/key/keyboard-interactive) - Local Shell via Windows ConPTY (PowerShell/Bash/Cmd) - VT100/ANSI terminal rendering (owner-drawn, double-buffered) - TTL script engine: send, sendln, wait, pause, timeout, if/while, messagebox - Group execution: waitall, sendlnall, sendlngroup (Barrier sync) - Run All / Run Group toolbar buttons - SFTP file browser sidebar (SSH.NET SftpClient) - PDU control via SNMP (pduconnect/pductrl commands) - Settings: Terminal prefs, Shell config, PDU monitoring - About page with changelog - AppSettings persisted to %LocalAppData%\ETTerms\ - Dark theme throughout (KKTerm purple accent)
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# ETTerms — Troubleshooting Runbooks
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## Serial Port Issues
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### COM port is busy / cannot open
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**Symptom:** "Access to the port 'COMx' is denied" or "The port is already in use."
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**Cause:** Another application (or another ETTerms tab) already has the port open.
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**Fix:**
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1. Check if another terminal (PuTTY, TeraTerm, Device Manager) has the port open — close it.
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2. In ETTerms, only one session per COM port is allowed. Close the existing tab first.
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3. If the port is stuck, unplug/replug the USB-Serial adapter.
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### COM port not showing in Quick Connect
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**Symptom:** The port exists in Device Manager but ETTerms doesn't list it.
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**Fix:**
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1. Close and reopen the Quick Connect dialog (it scans on open).
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2. Check Device Manager → Ports (COM & LPT) for the actual COM number.
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3. Some USB adapters need drivers (FTDI, CH340, CP2102).
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---
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## SSH Issues
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### Host key fingerprint changed
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**Symptom:** "Host key mismatch" warning when connecting.
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**Cause:** The remote server was reinstalled or its SSH keys were regenerated.
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**Fix:**
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1. Verify with the server admin that the key change is legitimate.
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2. Delete the old fingerprint from `%LocalAppData%\ETTerms\known_hosts.json`.
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3. Reconnect — ETTerms will prompt to trust the new key.
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### SSH connection timeout
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**Symptom:** Connection hangs for 30+ seconds then fails.
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**Fix:**
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1. Verify the host is reachable: `ping <host>` from cmd.
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2. Check if SSH port (default 22) is open: `Test-NetConnection <host> -Port 22` in PowerShell.
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3. Firewall / VPN may be blocking. Try from a different network.
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---
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## Script (TTL) Issues
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### Script hangs on `wait`
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**Symptom:** Script shows "wait 'xxx'" indefinitely.
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**Cause:** The expected keyword never appears in the output stream.
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**Fix:**
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1. Press **■ Stop** to cancel the script.
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2. Check that the wait keyword matches exactly (case-sensitive, including spaces).
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3. Use `timeout = 10` at the top of your script to auto-fail after 10 seconds instead of waiting forever.
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4. Use `flushrecv` before `wait` if there might be stale data in the buffer.
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### Script error: "'waitall' can only be used in Group execution mode"
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**Symptom:** Script stops immediately with this error.
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**Cause:** You used `waitall`, `sendlnall`, or `sendlngroup` commands but ran the script via **▶ Script** (per-tab) or **▶ Run All** instead of **▶ Group**.
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**Fix:**
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1. Right-click the session tabs → assign them to a Group (1/2/3).
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2. Use the **▶ Group1/2/3** buttons in the toolbar to run the script.
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---
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## PDU Issues
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### pduconnect fails
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**Symptom:** `[pduconnect] failed to connect to <ip>`
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**Fix:**
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1. Ping the PDU IP from your machine.
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2. Verify the PDU is an iPoMan II/III model (SNMP v1, community "private").
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3. Check that SNMP port 161/UDP is not blocked by firewall.
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### pductrl returns FAILED
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**Symptom:** `[pductrl] device X port Y ON → FAILED`
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**Fix:**
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1. Ensure you called `pduconnect` first for that device number.
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2. Verify the port number is valid (1–12).
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3. Check PDU web interface to confirm port is not locked.
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---
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## General
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### Settings not persisting
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**Fix:** Settings are saved to `%LocalAppData%\ETTerms\settings.json`. Check that the folder is writable. If the file is corrupted, delete it and restart ETTerms (defaults will be recreated).
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### Window position not remembered
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**Fix:** Window position saves on close. If ETTerms is killed (Task Manager), position won't be saved. Close normally via the X button.
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