Feature: Improve IP / Port Scanner and various fixes / improvements

.claude/skills/feature-review/SKILL.md

@@ -147,8 +147,8 @@ Reference code as `path:line`. Rate each finding (High / Medium / Low) in the fi
 prioritize. Proposed fixes describe the smallest change that follows the existing patterns.
 
 For larger missing features, add an issue draft at the end that follows the repository's feature request
-template (`.github/ISSUE_TEMPLATE/Feature_request.md`): a short title, "Describe your feature request",
-the motivation, a proposed behaviour (UI + logic), and which existing feature it could be modelled on.
+form (`.github/ISSUE_TEMPLATE/feature_request.yml`): a short title, the affected feature, "Problem / motivation",
+"Proposed solution" (UI + logic), and "Alternatives / workarounds" incl. which existing feature it could be modelled on.
 
 ### 7. After the report
 

.claude/skills/feature-review/references/conventions.md

@@ -102,6 +102,17 @@ Reference: `HostsFileEditorView.xaml`, `FirewallView.xaml`.
   Other users: `RunCommandViewModel.Suggestions`. Not yet used (same `Clear()` + `ForEach(Results.Add)` pattern on every
   refresh / auto refresh): `ConnectionsViewModel`, `ListenersViewModel`, `NeighborTableViewModel`,
   `HostsFileEditorViewModel` — report as a performance finding when reviewing them.
+- Column widths: no star (`Width="*"`) columns in a `DataGrid` — with a visible star column WPF only lets a column
+  grow by taking the width from the columns to its right, so columns can't be made wider than the window (#3557).
+  Use `wpfHelpers:DataGridHelper.FillRemainingWidth="True"` on the grid: the last visible column (or the one marked with
+  `wpfHelpers:DataGridHelper.IsFillColumn="True"`) fills the remaining width with a pixel width, every column can be
+  resized freely and the grid scrolls horizontally. Give the fill column a `MinWidth`.
+- Bindings on items that implement `INotifyPropertyChanged` (e.g. `IPScannerHostInfo`, view models via `BindingProxy`)
+  use **plain paths** (`IsPingPending`, `PingInfo.Status`, `Data.ScanOptions.ResolveHostname`), not the typed form
+  `(network:Type.Property)`. WPF registers a `PropertyChanged` listener with the property name the path parser stored;
+  for a typed part that name stays `null` if the owner type can't be resolved early (templates, child bindings of a
+  `MultiBinding`) → `ArgumentNullException` (`Parameter 'key'`) in `PropertyChangedEventManager.AddListener` as soon as
+  the item is shown. The typed form is only safe on plain (non-notifying) items.
 - Don't use a `Reset` for results that are *appended* while a scan runs (IP Scanner, Port Scanner, Traceroute): with a
   sorted view every `Reset` re-sorts the whole list and the grid loses its selection / scroll position. Those tools buffer
   results and flush them with a `DispatcherTimer` (reference: `IPScannerViewModel.FlushResultsBuffer`).
@@ -130,6 +141,12 @@ Reference: `HostsFileEditorView.xaml`, `FirewallView.xaml`.
 
 - Tool view: `Grid Margin="10"`, 10px spacer rows/columns. Header row: `HeaderTextBlock` left, refresh
   (`CleanButton` with `ReloadAnimationHelper.IsReloading`) and search (`SearchTextBox`, width 250) right.
+- Search box (`SearchTextBox`): filters while typing. Lists that can be large or slow to filter use a delay
+  (`DispatcherTimer` with `GlobalStaticConfiguration.SearchDispatcherTimerTimeSpan`, reference: `FirewallViewModel`),
+  short fixed lists filter on every key press. `Enter` only filters: `wpfHelpers:SearchTextBoxHelper.EnterCommand`
+  (delayed search, e.g. `ApplySearchCommand` = stop the timer + `Refresh()`) or `SearchTextBoxHelper.HandleEnter="True"`
+  (immediate search), so `Enter` never triggers the default button of the view / dialog / window. Exception: the
+  profile panel search runs the selected profile on `Enter` (`ProfileExpanderPanel`).
 - Bottom row: secondary actions left (e.g. Open hosts file, Windows Firewall settings), primary action right
   (e.g. Add entry...), `ImageWithTextButton`.
 - Dialog: two-column grid (`1*`, 10, `2*`), 10px spacing between rows, OK (`HighlightedButton`, `IsDefault`)

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,149 @@
+name: 🐛 Bug report
+description: Something doesn't work as expected, or the application crashes.
+labels: [":mag: needs triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to report a bug! 🙏
+
+        Please check the [existing issues](https://github.com/BornToBeRoot/NETworkManager/issues?q=is%3Aissue) first and whether the bug still happens with the [latest version](https://github.com/BornToBeRoot/NETworkManager/releases) (or pre-release).
+
+        > [!IMPORTANT]
+        > **Security vulnerabilities** must not be reported here - please use a [private security advisory](https://github.com/BornToBeRoot/NETworkManager/security/advisories/new).
+
+  - type: dropdown
+    id: area
+    attributes:
+      label: Affected feature
+      description: Where does the bug happen?
+      options:
+        - General (start, settings, profiles, update, ...)
+        - Run command
+        - Dashboard
+        - Network Interface
+        - WiFi
+        - IP Scanner
+        - Port Scanner
+        - Ping Monitor
+        - Traceroute
+        - DNS Lookup
+        - Remote Desktop
+        - PowerShell
+        - PuTTY
+        - TigerVNC
+        - Web Console
+        - SNMP
+        - SNTP Lookup
+        - Hosts File Editor
+        - Firewall
+        - Discovery Protocol
+        - Wake on LAN
+        - RDAP
+        - Whois
+        - IP Geolocation
+        - Subnet Calculator
+        - Bit Calculator
+        - Lookup
+        - Connections
+        - Listeners
+        - Neighbor Table
+        - Documentation / website
+        - Other
+    validations:
+      required: true
+
+  - type: textarea
+    id: description
+    attributes:
+      label: What happened?
+      description: Describe the bug and what you expected to happen instead.
+      placeholder: When I scan a range, hosts are shown as down, but I expected them to be up because ...
+    validations:
+      required: true
+
+  - type: textarea
+    id: steps
+    attributes:
+      label: Steps to reproduce
+      description: How can the bug be reproduced? Include the input and settings you used (without sensitive data).
+      placeholder: |
+        1. Open the IP Scanner
+        2. Enter `10.0.0.0/24` and click **Scan**
+        3. ...
+    validations:
+      required: true
+
+  - type: input
+    id: version
+    attributes:
+      label: NETworkManager version
+      description: Shown in **Settings > About**.
+      placeholder: e.g. 2026.7.7.0
+    validations:
+      required: true
+
+  - type: dropdown
+    id: installation
+    attributes:
+      label: Installation
+      options:
+        - Setup (MSI)
+        - Portable
+        - Archive
+        - WinGet
+        - Chocolatey
+        - Built from source
+    validations:
+      required: true
+
+  - type: dropdown
+    id: architecture
+    attributes:
+      label: Architecture
+      options:
+        - x64
+        - ARM64
+    validations:
+      required: true
+
+  - type: input
+    id: windows
+    attributes:
+      label: Windows version
+      description: Run `winver` to see the version and build.
+      placeholder: e.g. Windows 11 24H2 (Build 26100.4061)
+    validations:
+      required: true
+
+  - type: input
+    id: dotnet
+    attributes:
+      label: .NET Desktop Runtime version
+      description: Only needed if the application doesn't start - run `dotnet --list-runtimes`.
+      placeholder: e.g. Microsoft.WindowsDesktop.App 10.0.0
+
+  - type: textarea
+    id: logs
+    attributes:
+      label: Error message / log
+      description: |
+        The error message shown by NETworkManager, or the relevant part of the log file `%LocalAppData%\NETworkManager\NETworkManager.log`.
+        If the application crashes, also the error in the Event Viewer (**Windows Logs > Application**).
+      render: text
+
+  - type: textarea
+    id: screenshots
+    attributes:
+      label: Screenshots / additional information
+      description: Drag & drop screenshots or files here, or add anything else that helps to understand the bug.
+
+  - type: checkboxes
+    id: checklist
+    attributes:
+      label: Checklist
+      options:
+        - label: I have searched the existing issues and this bug hasn't been reported yet.
+          required: true
+        - label: I have removed sensitive data (e.g. passwords, IP addresses, hostnames) from logs and screenshots.
+          required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,14 @@
+blank_issues_enabled: false
+contact_links:
+  - name: 📖 Documentation
+    url: https://borntoberoot.net/NETworkManager/docs/introduction
+    about: Features, settings, FAQ and how to use NETworkManager.
+  - name: 💬 Discussions
+    url: https://github.com/BornToBeRoot/NETworkManager/discussions
+    about: Share ideas, show what you built or talk with the community.
+  - name: 🌍 Translations
+    url: https://app.transifex.com/BornToBeRoot/NETworkManager/dashboard/
+    about: Translations are managed on Transifex - help translate NETworkManager there.
+  - name: 🔒 Security vulnerability
+    url: https://github.com/BornToBeRoot/NETworkManager/security/advisories/new
+    about: Please report security vulnerabilities privately, not as a public issue.

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -0,0 +1,90 @@
+name: 💡 Feature request
+description: Suggest a new feature or an improvement of an existing one.
+labels: [":rocket: feature-request"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for helping to make NETworkManager better! 🚀
+
+        Please check the [existing issues](https://github.com/BornToBeRoot/NETworkManager/issues?q=is%3Aissue) first - maybe your idea was already suggested. If so, give it a 👍 instead of creating a new issue.
+
+  - type: dropdown
+    id: area
+    attributes:
+      label: Feature
+      description: Which feature is it about?
+      options:
+        - New feature / tool
+        - General (start, settings, profiles, update, ...)
+        - Run command
+        - Dashboard
+        - Network Interface
+        - WiFi
+        - IP Scanner
+        - Port Scanner
+        - Ping Monitor
+        - Traceroute
+        - DNS Lookup
+        - Remote Desktop
+        - PowerShell
+        - PuTTY
+        - TigerVNC
+        - Web Console
+        - SNMP
+        - SNTP Lookup
+        - Hosts File Editor
+        - Firewall
+        - Discovery Protocol
+        - Wake on LAN
+        - RDAP
+        - Whois
+        - IP Geolocation
+        - Subnet Calculator
+        - Bit Calculator
+        - Lookup
+        - Connections
+        - Listeners
+        - Neighbor Table
+        - Documentation / website
+        - Other
+    validations:
+      required: true
+
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem / motivation
+      description: What do you want to achieve, or what is missing or annoying today?
+      placeholder: I often need to ... but currently I have to ...
+    validations:
+      required: true
+
+  - type: textarea
+    id: solution
+    attributes:
+      label: Proposed solution
+      description: How should it work? Describe the behavior and the UI (e.g. button, setting, context menu entry).
+      placeholder: Add a ... to the ... that ...
+    validations:
+      required: true
+
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives / workarounds
+      description: Other solutions you have considered, or how other tools solve it.
+
+  - type: textarea
+    id: context
+    attributes:
+      label: Additional information
+      description: Screenshots, mockups, links or anything else that helps.
+
+  - type: checkboxes
+    id: checklist
+    attributes:
+      label: Checklist
+      options:
+        - label: I have searched the existing issues and this feature hasn't been requested yet.
+          required: true

.github/ISSUE_TEMPLATE/question.yml

@@ -0,0 +1,29 @@
+name: ❓ Question
+description: Ask a question about NETworkManager or how to use a feature.
+labels: [":question: question"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Have a question? Maybe the [documentation](https://borntoberoot.net/NETworkManager/docs/introduction) or the [FAQ](https://borntoberoot.net/NETworkManager/docs/category/faq) already has the answer. For ideas and general discussions, you can also use the [discussions](https://github.com/BornToBeRoot/NETworkManager/discussions).
+
+  - type: textarea
+    id: question
+    attributes:
+      label: Question
+      description: What would you like to know?
+    validations:
+      required: true
+
+  - type: textarea
+    id: context
+    attributes:
+      label: Context
+      description: What are you trying to achieve, and what have you tried? Screenshots are welcome.
+
+  - type: input
+    id: version
+    attributes:
+      label: NETworkManager version
+      description: Shown in **Settings > About** (if the question is about the application).
+      placeholder: e.g. 2026.7.7.0