Prototype cleaner player known issues tracker and own intake editing

Build a standalone HTML/CSS/JS mockup in PRK.PlayerPortal/prototypes for design review, not production integration. Preserve Eclipse brand cues while making a dense readable bug tracker with search, category/topic/state filters, clear issue labels, public issue details, and separate private My reports with owner intake editing. Use clearly marked fictional sample data. Existing reports are immutable and pending content private; editing is a proposed workflow requiring backend policy/API work later, never imply public canonical issues can be player-edited. Validate responsive desktop/tablet/mobile rendering and interactive filter/edit/save/cancel behavior in Chrome. Acceptance met: standalone mockup at PRK.PlayerPortal/prototypes/known-issues with README, functional search/filter/sort/status/audience controls, published detail, private owner report editing/creation, unsaved-change confirmations and local-only saves. Chrome validated at 1440/768/390 including save/reopen, public issue isolation, evidence-label preservation, whitespace validation, linked navigation and reset on reload. Fixed singular footer wording and favicon resource request; final Chrome pass had no console/resource errors. Node syntax, app lint and responsive inspector passed (existing Eclipse palette exception); six final screenshot sheets visually reviewed. Follow-up prototype refinements include ELI5 privacy copy, removed subtitle, searchable category/topic/state dropdowns with keyboard/Tab dismissal, and whole-row hit areas preserving the separate Edit action. CSS and dropdown behavior are now shared with the subsequent portal implementation. Direct file loading/filtering/editing was verified through the Chrome CLI as well as local HTTP serving. Runtime before screenshot unavailable without authenticated portal DB/identity services. The prototype itself remains fictional/local-only. Production integration is tracked separately; prototype tests do not claim backend privacy or attachment-byte verification. Included in commit e46940130 on feature/player-issue-tracker. Pull request #2940: https://git.project-rk.com/prk/engines/pulls/2940 (base develop).