⚡ Memoize project filtering in ProjectsSection

[WebCraftPhil]

The ProjectsSection component was recalculating the filteredProjects array on every render, even if the filter state hadn't changed. This PR introduces useMemo to memoize the filtered results based on the filter dependency. Additionally, the static categories array has been moved outside the component function to prevent it from being re-allocated during every render cycle. These changes reduce unnecessary CPU cycles and memory allocations, improving the component's performance.

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PR created automatically by Jules for task 5149260371857232735 started by @WebCraftPhil

Summary by Sourcery

Optimize project listing rendering in ProjectsSection by memoizing filtered results and avoiding per-render category allocation.

Enhancements:

• Memoize filtered projects based on the selected filter to avoid unnecessary recomputation on re-renders.
• Hoist the static project categories definition outside the ProjectsSection component to prevent repeated allocations.

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Project	Deployment	Actions	Updated (UTC)
philgreene-net	Ready	Preview, Comment	May 21, 2026 2:16am

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Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Memoizes project filtering in ProjectsSection and hoists the categories definition to avoid per-render allocations, improving performance and keeping behavior unchanged.

Sequence diagram for memoized filtering in ProjectsSection

sequenceDiagram
  participant React
  participant ProjectsSection
  participant useMemo
  participant projects

  React->>ProjectsSection: render(filter)
  ProjectsSection->>useMemo: computeFilteredProjects(filter)
  alt [filter changed]
    useMemo->>projects: filter(category === filter)
    useMemo-->>ProjectsSection: new filteredProjects
  else [filter unchanged]
    useMemo-->>ProjectsSection: cached filteredProjects
  end

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File-Level Changes

Change	Details	Files
Memoize filtered projects based on the filter state to avoid recomputing on every render.	Wraps filteredProjects computation in useMemo with filter as dependency. Preserves existing filtering logic for 'all' and specific categories using projects.filter. Ensures filteredProjects is only recalculated when filter changes rather than on every render.	client/src/components/ProjectsSection.tsx
Hoist static categories definition outside the ProjectsSection component to avoid re-allocating it on each render.	Moves the categories array from inside the ProjectsSection component to a top-level const next to projects. Keeps category ids and labels unchanged to preserve existing UI and behavior.	client/src/components/ProjectsSection.tsx

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