docs: update README & add release notes for v0.3.3

Bump the version badge to 0.3.3 and add the v0.3.3 entry to Version History
in both README.md and README.zh-TW.md (terminal input fix). Add the v0.3.3
release note, and include the previously uncommitted v0.3.2 release note.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docs/release-notes/v0.3.2.md

@@ -0,0 +1,40 @@
+# v0.3.2 — Status page with PDU outlet control
+
+## ✨ New features
+
+**Status page — control PDU outlets with buttons**
+* New **Status** view (the **⚡** icon on the left, between Terminal and Settings) with a **PDU** tab —
+  connect to your PDU by IP and see every outlet at a glance: state, current (mA) and power (W).
+* Each outlet row now has its own **Control** button: the label tracks the live state
+  (**Turn ON** when off, **Turn OFF** when on), so a single click flips that port. The SNMP command
+  runs off the UI thread, the grid refreshes after the change, and it resets cleanly on disconnect.
+* Outlet status **auto-refreshes every 3 seconds** in the background — no more manual Refresh button.
+* The PDU panel moved out of **Settings** into its own Status tab (Settings now keeps just
+  **Terminal / AI MCP**), and the layout is ready for more Status tabs later.
+
+## 🐛 Bug fixes
+
+**Local Shell startup**
+* Fixed: the local Shell no longer fails to start when its saved working folder is gone
+  (e.g. an unplugged USB drive or a deleted folder), which previously caused
+  `CreateProcess failed: 267 (ERROR_DIRECTORY)`. It now falls back to your home folder,
+  matching Windows PowerShell behavior.
+
+## 📦 Downloads
+
+Two builds are produced:
+
+| Build | Needs .NET 8 Desktop Runtime? | Notes |
+|-------|-------------------------------|-------|
+| **Standard** (`ETTerms_v0.3.2`) | ✅ Yes | Smaller; for machines that already have the runtime |
+| **Portable** (`ETTerms_v0.3.2_portable`) | ❌ No | Runtime bundled — unzip and run, no install / admin needed |
+
+Run `ETTerms v0.3.2.exe`.
+
+## 🔗 Links
+* PDU MCP & Serial MCP setup guide:
+  [docs/serial-mcp-guide.md](https://github.com/ETWen/ETTerms/blob/main/docs/serial-mcp-guide.md)
+* TTL reference:
+  [docs/ttl-script-reference.md](https://github.com/ETWen/ETTerms/blob/main/docs/ttl-script-reference.md)
+
+**Full changelog:** [v0.3.1...v0.3.2](https://github.com/ETWen/ETTerms/compare/v0.3.1...v0.3.2)

docs/release-notes/v0.3.3.md

@@ -0,0 +1,32 @@
+# v0.3.3 — Terminal input no longer dies after activity
+
+## 🐛 Bug fixes
+
+**Terminal stops accepting input after you switch away and back**
+* Fixed: once the terminal had printed some output (on a **Serial** or **PowerShell** tab),
+  switching away and back — minimizing the window, or clicking another app — could leave the
+  terminal unable to accept any typing or **Enter**. Previously the only way out was to close
+  and reopen the session (re-open the COM port / start a fresh PowerShell).
+* While the session sat idle, this never happened — it only showed up after enough output had
+  scrolled by, which is exactly when it bit you mid-task.
+* Cause: after enough output built up scrollback, the terminal's scrollbar could grab the
+  keyboard focus when the window regained focus, and the scrollbar has no keyboard handling —
+  so your keystrokes went nowhere. The scrollbar is now mouse-only and never takes focus, so
+  the terminal keeps working no matter how much it has printed.
+
+## 📦 Downloads
+
+Two builds are produced:
+
+| Build | Needs .NET 8 Desktop Runtime? | Notes |
+|-------|-------------------------------|-------|
+| **Standard** (`ETTerms_v0.3.3`) | ✅ Yes | Smaller; for machines that already have the runtime |
+| **Portable** (`ETTerms_v0.3.3_portable`) | ❌ No | Runtime bundled — unzip and run, no install / admin needed |
+
+Run `ETTerms v0.3.3.exe`.
+
+## 🔗 Links
+* PDU MCP & Serial MCP setup guide:
+  [docs/serial-mcp-guide.md](https://github.com/ETWen/ETTerms/blob/main/docs/serial-mcp-guide.md)
+
+**Full changelog:** [v0.3.2...v0.3.3](https://github.com/ETWen/ETTerms/compare/v0.3.2...v0.3.3)