chore: update issue templates, PR template, and CoC (#4914)

- bug_report: add expected/actual behavior fields, script name,
  pre-check checkbox, required steps to reproduce, and AI triage
  metadata (severity, reproducibility, regression, affects-latest)
- feature_request: add priority field, problem statement, scope/impact,
  alternatives considered; make command optional; remove irrelevant
  bug-specific triage fields
- server_request: add dedicated server checkbox, official docs and
  Linux binary proof fields; fix CoC placeholder URL; remove
  irrelevant bug/feature triage fields
- config.yml: add private security reporting contact link
- pull_request_template: add testing, risk/rollback, breaking changes,
  and documentation impact sections
- CODE_OF_CONDUCT: upgrade from Contributor Covenant v2.1 to v3.0;
  fill reporting placeholders with GitHub advisory and Discord links

Author: dgibbs64

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -8,6 +8,51 @@ body:
     attributes:
       value: |
         Thanks for taking the time to fill out this bug report!
+  - type: dropdown
+    id: severity
+    attributes:
+      label: Severity
+      description: Triage metadata used for prioritization.
+      options:
+        - "severity: low"
+        - "severity: medium"
+        - "severity: high"
+        - "severity: critical"
+    validations:
+      required: true
+  - type: dropdown
+    id: reproducibility
+    attributes:
+      label: Reproducibility
+      description: Triage metadata used for prioritization.
+      options:
+        - "reproducible: always"
+        - "reproducible: sometimes"
+        - "reproducible: unable"
+    validations:
+      required: true
+  - type: dropdown
+    id: regression
+    attributes:
+      label: Regression
+      description: Triage metadata used for prioritization.
+      options:
+        - "regression: yes"
+        - "regression: no"
+        - "regression: unknown"
+    validations:
+      required: true
+  - type: dropdown
+    id: affects-latest
+    attributes:
+      label: Affects latest release
+      description: Triage metadata used for prioritization.
+      options:
+        - "latest-release: yes"
+        - "latest-release: no"
+        - "latest-release: unknown"
+    validations:
+      required: true
   - type: input
     id: user-story
     attributes:
@@ -16,6 +61,14 @@ body:
       placeholder: As a [user description], I want [desired action] so that [desired outcome].
     validations:
       required: true
+  - type: input
+    id: script-name
+    attributes:
+      label: Script name
+      description: LinuxGSM script name in use.
+      placeholder: vhserver
+    validations:
+      required: true
   - type: input
     id: game
     attributes:
@@ -66,6 +119,22 @@ body:
         - "command: send"
     validations:
       required: true
+  - type: textarea
+    id: expected-behavior
+    attributes:
+      label: Expected behavior
+      description: What should happen?
+      placeholder: Describe the expected result.
+    validations:
+      required: true
+  - type: textarea
+    id: actual-behavior
+    attributes:
+      label: Actual behavior
+      description: What actually happens?
+      placeholder: Describe the observed result.
+    validations:
+      required: true
   - type: textarea
     id: further-info
     attributes:
@@ -74,11 +143,19 @@ body:
       placeholder: Tell us what you see!
     validations:
       required: true
+  - type: checkboxes
+    id: prechecks
+    attributes:
+      label: Pre-checks
+      description: Confirm standard troubleshooting has been completed.
+      options:
+        - label: I ran update and validate before reporting this issue.
+          required: true
   - type: textarea
     id: logs
     attributes:
       label: Relevant log output
-      description: Please copy and paste any relevant log output. This will be automatically formatted into code, so no need for backticks.
+      description: Include the exact command used and the full related output (debug/details if available). This will be automatically formatted into code.
       render: shell
   - type: textarea
     id: steps
@@ -90,3 +167,5 @@ body:
         2. Click on '....'
         3. Scroll down to '....'
         4. See error
+    validations:
+      required: true

.github/ISSUE_TEMPLATE/config.yml

@@ -6,3 +6,6 @@ contact_links:
   - name: Discord Server
     about: Join the LinuxGSM Discord community server. Discuss your LinuxGSM setup, get help and advice
     url: https://linuxgsm.com/discord
+  - name: Report a security vulnerability
+    about: Please report security vulnerabilities privately, not in public issues.
+    url: https://github.com/GameServerManagers/LinuxGSM/security/advisories/new

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -8,6 +8,17 @@ body:
     attributes:
       value: |
         Thanks for taking the time to fill out this feature request!
+  - type: dropdown
+    id: priority
+    attributes:
+      label: Priority
+      description: How important is this feature to you?
+      options:
+        - "priority: low"
+        - "priority: medium"
+        - "priority: high"
+    validations:
+      required: true
   - type: input
     id: user-story
     attributes:
@@ -64,12 +75,41 @@ body:
         - "command: update-lgsm"
         - "command: wipe"
         - "command: send"
+    validations:
+      required: false
+  - type: textarea
+    id: problem-statement
+    attributes:
+      label: Problem statement
+      description: What is painful today, and why is this needed?
+      placeholder: Describe the current limitation or pain point.
+    validations:
+      required: true
+  - type: dropdown
+    id: scope-impact
+    attributes:
+      label: Scope and impact
+      description: Which area would this change impact?
+      options:
+        - "scope: single game"
+        - "scope: multiple games"
+        - "scope: all servers"
+        - "scope: documentation only"
+        - "scope: ci/cd or automation"
+        - "scope: other"
     validations:
       required: true
   - type: textarea
     id: further-info
     attributes:
       label: Further information
-      description: A clear description of what the feature is and any ideas on how to achieve this.
+      description: A clear description of the proposed solution and any implementation ideas.
     validations:
       required: true
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives considered
+      description: Describe alternatives or workarounds you considered.
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/server_request.yml

@@ -7,19 +7,27 @@ body:
   - type: markdown
     attributes:
       value: |
-        Thanks for taking the time to fill out this game server!
+        Thanks for taking the time to fill out this game server request!
   - type: input
     id: game-server
     attributes:
       label: Game server
       description: What game server would you like to add?
     validations:
       required: true
+  - type: checkboxes
+    id: dedicated-server
+    attributes:
+      label: Dedicated server
+      description: Confirm this is a dedicated server request and not client hosting.
+      options:
+        - label: "Yes, this is a dedicated server (not client hosting)."
+          required: true
   - type: checkboxes
     id: on-linux
     attributes:
       label: Linux support
-      description: Does this game server have Linux support? (not wine)
+      description: Does this game server have native Linux server support? (not wine)
       options:
         - label: "Yes"
     validations:
@@ -38,20 +46,40 @@ body:
     id: steam-id
     attributes:
       label: Steam appid
-      description: What is the Steam appid of the game server? Use SteamDB to get the appid. (https://steamdb.info).
+      description: What is the Steam appid of the dedicated server? Required when Steam is Yes. Use SteamDB to get the appid (https://steamdb.info).
       placeholder: "892970"
     validations:
       required: false
+  - type: textarea
+    id: official-docs
+    attributes:
+      label: Official dedicated server documentation
+      description: Provide official documentation links for installing/running the dedicated server.
+      placeholder: |
+        https://example.com/docs/server-setup
+        https://example.com/docs/dedicated-server
+    validations:
+      required: true
+  - type: textarea
+    id: linux-binary-proof
+    attributes:
+      label: Linux binary proof
+      description: Provide evidence that Linux server binaries are available (official docs/download links/version notes).
+      placeholder: |
+        https://example.com/downloads/linux-dedicated-server
+        https://example.com/release-notes/linux-server
+    validations:
+      required: true
   - type: textarea
     id: guides
     attributes:
       label: Guides
-      description: Links to guides on how to install the game server
+      description: Links to community or third-party guides on how to install the game server.
   - type: checkboxes
     id: terms
     attributes:
       label: Code of Conduct
-      description: By submitting this issue, you agree to follow our [Code of Conduct](https://example.com)
+      description: By submitting this issue, you agree to follow our [Code of Conduct](https://github.com/GameServerManagers/LinuxGSM/blob/master/CODE_OF_CONDUCT.md)
       options:
         - label: I agree to follow this project's Code of Conduct
           required: true

.github/pull_request_template.md

@@ -12,18 +12,40 @@ Fixes #[issue]
 - [ ] Refactor (restructures existing code).
 - [ ] Comment update (typo, spelling, explanation, examples, etc).
 
+## Testing
+
+Please list the exact validation you performed and the outcome.
+
+- Commands/tests run:
+- Result:
+- Environment used (distro/version):
+
+## Risk and rollback
+
+- Risk level: low / medium / high
+- Rollback plan:
+
+## Breaking changes
+
+- [ ] No breaking changes.
+- [ ] Breaking changes included (describe below).
+
+## Documentation impact
+
+- [ ] No documentation update required.
+- [ ] User documentation update required.
+- [ ] Developer documentation update required.
+
 ## Checklist
 
 PR will not be merged until all steps are complete.
 
 - [ ] This pull request links to an issue.
-- [ ] This pull request uses the `develop` branch as its base.
+- [ ] This pull request uses the develop branch as its base.
 - [ ] This pull request subject follows the Conventional Commits standard.
 - [ ] This code follows the style guidelines of this project.
 - [ ] I have performed a self-review of my code.
-- [ ] I have checked that this code is commented where required.
 - [ ] I have provided a detailed enough description of this PR.
-- [ ] I have checked if documentation needs updating.
 
 ## Documentation