Add Numerics issue templates

.github/ISSUE_TEMPLATE/01-bug-report.yml

@@ -0,0 +1,84 @@
+name: Bug report
+description: Report something that is not working correctly.
+title: "[Bug]: "
+labels: ["bug"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for reporting a problem. Please do not report security vulnerabilities here; contact the RMC team directly through official USACE-RMC channels.
+
+  - type: textarea
+    id: what-happened
+    attributes:
+      label: What happened?
+      description: Briefly describe the problem.
+      placeholder: "Example: Normal.InverseCDF returns NaN for a valid probability input."
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected-behavior
+    attributes:
+      label: What did you expect to happen?
+      description: Tell us what result or behavior you expected instead.
+      placeholder: "Example: I expected the method to return the same quantile value as R or SciPy."
+    validations:
+      required: true
+
+  - type: textarea
+    id: steps-to-reproduce
+    attributes:
+      label: Steps to reproduce
+      description: List the steps, code, inputs, or data that caused the problem, if you know them.
+      value: |
+        1.
+        2.
+        3.
+    validations:
+      required: false
+
+  - type: input
+    id: affected-area
+    attributes:
+      label: Affected namespace, class, or method
+      description: Name the Numerics area if you know it.
+      placeholder: "Example: Numerics.Distributions.Normal, Statistics.ProductMoments, Integration.GaussLegendre"
+    validations:
+      required: false
+
+  - type: input
+    id: numerics-version
+    attributes:
+      label: Numerics version, package version, branch, or commit
+      description: Enter the RMC.Numerics package version, branch, or commit if you know it.
+      placeholder: "Example: RMC.Numerics 2.1.1 or commit abc1234"
+    validations:
+      required: false
+
+  - type: input
+    id: environment
+    attributes:
+      label: Operating system and .NET details
+      description: Add any OS, target framework, SDK, runtime, or IDE version details you know.
+      placeholder: "Example: Windows 11, net8.0, .NET 10 SDK, Visual Studio 2026"
+    validations:
+      required: false
+
+  - type: input
+    id: input-data
+    attributes:
+      label: Input data or parameters
+      description: Include the key numeric values, distributions, sample sizes, seeds, or file formats involved.
+      placeholder: "Example: p = 0.999, mean = 0, standard deviation = 1"
+    validations:
+      required: false
+
+  - type: upload
+    id: files
+    attributes:
+      label: Screenshots, logs, data, or sample files
+      description: Upload anything that helps reproduce or explain the problem.
+    validations:
+      required: false
+      accept: ".png,.jpg,.jpeg,.gif,.webp,.svg,.log,.txt,.csv,.json,.zip,.pdf,.docx,.xlsx,.pptx"

.github/ISSUE_TEMPLATE/02-feature-request.yml

@@ -0,0 +1,75 @@
+name: Feature request
+description: Suggest a new feature or improvement.
+title: "[Feature]: "
+labels: ["enhancement"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for suggesting an improvement. Please focus on the user need, workflow, or numerical method you want to support.
+
+  - type: textarea
+    id: problem
+    attributes:
+      label: What problem would this solve?
+      description: Describe the user need, workflow problem, or numerical/statistical gap.
+      placeholder: "Example: I need to fit a distribution using censored hydrologic data without implementing the estimator myself."
+    validations:
+      required: true
+
+  - type: textarea
+    id: desired-behavior
+    attributes:
+      label: What would you like to happen?
+      description: Describe the feature, API, method, or improvement.
+      placeholder: "Example: Add parameter estimation support for left-censored samples in the LogPearsonIII distribution."
+    validations:
+      required: true
+
+  - type: dropdown
+    id: importance
+    attributes:
+      label: How important is this to your work?
+      options:
+        - Nice to have
+        - Helpful
+        - Important
+        - Blocking my work
+    validations:
+      required: true
+
+  - type: textarea
+    id: references
+    attributes:
+      label: References or validation sources
+      description: Add published methods, software references, tables, or example implementations if relevant.
+      placeholder: "Example: Bulletin 17C, an R package, SciPy documentation, or a peer-reviewed paper."
+    validations:
+      required: false
+
+  - type: textarea
+    id: workaround
+    attributes:
+      label: Current workaround
+      description: How are you handling this now, if at all?
+      placeholder: "Example: I call an R package separately and import the results into my .NET workflow."
+    validations:
+      required: false
+
+  - type: input
+    id: affected-area
+    attributes:
+      label: Affected namespace, class, or method
+      description: Name the Numerics area if you know it.
+      placeholder: "Example: Probability distributions, optimization, MCMC sampling, interpolation"
+    validations:
+      required: false
+
+  - type: upload
+    id: examples
+    attributes:
+      label: Examples, screenshots, data, or files
+      description: Upload anything that helps explain the request.
+    validations:
+      required: false
+      accept: ".png,.jpg,.jpeg,.gif,.webp,.svg,.log,.txt,.csv,.json,.zip,.pdf,.docx,.xlsx,.pptx"

.github/ISSUE_TEMPLATE/03-documentation.yml

@@ -0,0 +1,54 @@
+name: Documentation
+description: Report missing, unclear, or incorrect documentation.
+title: "[Docs]: "
+labels: ["documentation"]
+body:
+  - type: textarea
+    id: location
+    attributes:
+      label: Where is the documentation issue?
+      description: Link to the page, section, API member, or file if possible.
+      placeholder: "Example: docs/distributions/univariate.md, XML docs for Normal.CDF, or the README installation section"
+    validations:
+      required: true
+
+  - type: dropdown
+    id: issue-type
+    attributes:
+      label: What type of documentation issue is this?
+      options:
+        - Missing information
+        - Unclear explanation
+        - Incorrect information
+        - Typo or formatting problem
+        - Example needed
+        - Other
+    validations:
+      required: true
+
+  - type: textarea
+    id: description
+    attributes:
+      label: Describe the issue
+      description: What is confusing, missing, or incorrect?
+      placeholder: "Example: The documentation describes the parameter as scale, but the API uses rate."
+    validations:
+      required: true
+
+  - type: textarea
+    id: suggested-change
+    attributes:
+      label: Suggested change
+      description: Optional. Suggest wording, examples, equations, or references that would help.
+      placeholder: "Example: Add a C# example showing how to fit a distribution and evaluate its CDF."
+    validations:
+      required: false
+
+  - type: upload
+    id: files
+    attributes:
+      label: Screenshots, references, or files
+      description: Upload screenshots, source references, example data, or other supporting files if helpful.
+    validations:
+      required: false
+      accept: ".png,.jpg,.jpeg,.gif,.webp,.svg,.log,.txt,.csv,.json,.zip,.pdf,.docx,.xlsx,.pptx"

.github/ISSUE_TEMPLATE/04-question.yml

@@ -0,0 +1,63 @@
+name: Question
+description: Ask a specific question about using the project.
+title: "[Question]: "
+labels: ["question"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Please use this form for specific usage questions about RMC.Numerics.
+
+  - type: textarea
+    id: question
+    attributes:
+      label: What is your question?
+      description: Ask the question as clearly as possible.
+      placeholder: "Example: Which distribution class should I use for a flood frequency analysis with historical information?"
+    validations:
+      required: true
+
+  - type: textarea
+    id: goal
+    attributes:
+      label: What are you trying to do?
+      description: Briefly describe your workflow or goal.
+      placeholder: "Example: I am trying to estimate uncertainty bounds for a stage-frequency curve in a .NET application."
+    validations:
+      required: false
+
+  - type: textarea
+    id: tried
+    attributes:
+      label: What have you already tried?
+      description: Optional. Tell us what documentation, methods, examples, or tests you checked.
+      placeholder: "Example: I read the user guide and looked at the MCMC sampling tests."
+    validations:
+      required: false
+
+  - type: input
+    id: affected-area
+    attributes:
+      label: Affected namespace, class, or method
+      description: Name the Numerics area if you know it.
+      placeholder: "Example: Distributions, statistics, optimization, random sampling"
+    validations:
+      required: false
+
+  - type: input
+    id: environment
+    attributes:
+      label: Operating system and .NET details
+      description: Add any OS, target framework, SDK, runtime, or IDE version details that may matter.
+      placeholder: "Example: Windows 11, net8.0, .NET 10 SDK, Rider or Visual Studio"
+    validations:
+      required: false
+
+  - type: upload
+    id: files
+    attributes:
+      label: Screenshots, logs, data, or files
+      description: Upload files or screenshots if they help explain the question.
+    validations:
+      required: false
+      accept: ".png,.jpg,.jpeg,.gif,.webp,.svg,.log,.txt,.csv,.json,.zip,.pdf,.docx,.xlsx,.pptx"

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1 @@
+blank_issues_enabled: false