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Dev - #6
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Dev#6
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…y Analyzer, and 4 Scenario Labs
…l), and design patterns
…docks, and refined layout
…and Socratic remediation - Add simulation.ts: M/M/1 queuing theory engine with QPS propagation, chaos events (db-crash, cache-stampede, slow-consumer-lag, network-partition, ddos-flood), and SLO evaluation - Add SimulationPanel.tsx: interactive HUD with QPS slider (1k-500k), traffic profiles, and 1-click chaos toggles - Add FailureDecisionModal.tsx: Socratic incident prompt with architectural remediation choices - Integrate simulation mode into ArchitectureCanvas: Design/Simulate toggle, live node health halos, metrics overlay - Fix chaos health state preservation: skip M/M/1 override when chaos already set critical - Add 21-test suite covering baseline health, load degradation, chaos events, SLO violations, and edge cases - Fix test fixture categories and clean up unused imports
- Expand conceptSchema with tenDimensionsSchema covering the 10 universal questions (Problem, Why It Happens, Primitive Solution, Scale Limit, Component, Trade-Offs, Failure Modes, Alternatives, Interview Signals, Real Systems) - Author complete 10D profiles for 12 core architecture components in system-design.ts - Create ComponentReferenceModal with tabbed views (The Progression, Trade-Offs Matrix, Production Reality, Interview Signals) - Integrate 10D Spec trigger into ArchitectureCanvas node inspector, ConceptPopover, and ConceptMindMap - Add comprehensive test suite in tests/content/component-dimensions.test.ts
- Create src/lib/system-design/remediation.ts to map weak dimensions to targeted 10D component specs and chaos simulation configs - Add dedicated architecture presets for distributed-cache and real-time-chat in canvas-presets.ts - Expand Scorecard with Targeted Remediation Plan, 10D Component chips, and 'Simulate & Fix on Whiteboard' trigger - Enhance ArchitectureCanvas to support initialMode and initialSimConfig props - Support embedded 1-click remediation whiteboard launching in ScenarioLab - Add comprehensive test suite in tests/system-design/remediation.test.ts
…trast - Portal ComponentReferenceModal directly to document.body at z-70 to prevent stacking context traps - Unmount ConceptPopover card and backdrop catcher when opening 10D breakdown modal - Redesign tab navigation and step badges using high-contrast token pairings (bg-accent text-accent-foreground border-border-strong) that look crisp in both light and dark modes - Replace unreadable text-accent in light mode with semantic tokens (text-foreground, text-link, text-danger, text-success) - Fix 10D Spec button contrast in ArchitectureCanvas node inspector and Scorecard chips
- Add gc-modal-enter and gc-tab-enter keyframe animations to globals.css with reduced-motion support - Add smooth entrance and tab transitions to ComponentReferenceModal - Add active scale and hover micro-animations to SimulationPanel and FailureDecisionModal
…I interviewer, and personalization engine - Add mock track definitions for DSA (FAANG 45m, Speed 30m) and System Design (Core 45m, Staff+ Streaming 60m) - Implement Socratic AI Interviewer agent engine with contextual hints, probing questions, stage management, and candidate scorecards - Build Leitner spaced repetition engine and retention storage manager - Create interactive interview workspaces with StageTimer, InterviewerChat, and MockScorecardModal - Add /interviews catalog and dynamic simulation routes for DSA and System Design - Integrate PersonalizedDashboard into main Dashboard with activity heatmap and spaced repetition review queue - Smooth 10D architectural reference tab transitions and scroll reset
…ensive accessibility audit - Add responsive mobile pane switchers for DsaMockWorkspace and SystemDesignMockWorkspace (< 1024px) - Create accessible useFocusTrap hook with Tab/Shift+Tab containment, Escape handling, and opener focus restoration - Wire focus trap and ARIA dialog semantics into ComponentReferenceModal, MockScorecardModal, and FailureDecisionModal - Add aria-live polite milestone announcer and timer role to StageTimer - Add role=alert and assertive live announcements to SimulationPanel - Add a11y audit test suite in tests/design/a11y-audit.test.ts
…age Runtime Registry - Define canonical Unified Execution Trace Intermediate Representation (IR) v2.0.0 supporting pointers, trees, stacks, queues, arrays, maps, and grids - Build TraceIRBuilder with schema validation (validateTraceIR) and serialization/deserialization helpers - Create multi-language runtime profile registry covering Tier 1 (Python, JS, TS) and Tier 2 (Java, C++, Go) - Add comprehensive test suite in tests/runtime/unified-ir.test.ts
…ery (Modules G2 & C10) - Build Community Solution Sharing engine with localStorage persistence and upvoting in src/lib/community/solutions.ts - Provide curated seed solutions for launch exercises (two-sum, invert-binary-tree, build-lru-cache) - Create SolutionShareModal with accessible focus trapping, approach description, and Big-O complexity inputs - Create CommunitySolutionGallery with language filters, sorting, upvotes, and spoiler gate for unsolved problems - Integrate seamlessly into Workspace.tsx with post-pass Share button and Community Solutions tab - Add unit test suite in tests/community/solutions.test.ts
…Language Expansion) - Build TypeScript runtime adapter (stripTypeScriptTypes) with line-preserving type stripping in src/lib/runtime/typescript.ts - Enable TypeScript grammar and syntax highlighting in CodeMirror via language-support.ts - Verify TypeScript execution, interface stripping, and line-step preservation in tests/runtime/typescript.test.ts - Satisfy LanguageRuntime interface and adapter conformance in tests/runtime/adapter-conformance.test.ts
…Q&A (Module G1) - Build Discussion and Q&A engine with threaded replies, local persistence, and upvoting in src/lib/community/discussions.ts - Provide curated seed edge-case discussions for launch exercises (two-sum, invert-binary-tree, build-lru-cache) - Create ProblemDiscussions component with tag filters (Questions, Edge Cases, Optimizations, Intuition), inline reply composer, and author badges - Integrate Discussions tab into Workspace.tsx alongside Test Cases and Community Solutions - Add unit test suite in tests/community/discussions.test.ts
Leaderboard: - Build leaderboard engine with seeded phantom rankings and multi-sort (problems solved, streak, challenges, submissions) in src/lib/community/leaderboard.ts - Create Leaderboard component with podium top-3, ranked table, badges, and sort controls in src/components/community/Leaderboard.tsx - Add /leaderboard public page and wire into dashboard navigation - Add unit test suite in tests/community/leaderboard.test.ts Content Enrichment: - Enrich landing page with Mock Interviews, Company Guides, Community Layer, and final CTA sections - Update differentiator section to mention TypeScript alongside Python and JavaScript - Add Leaderboard track to dashboard navigation
- Elevate 'Create free account' as primary CTA across landing hero and final CTA, with clear 'Explore as guest' secondary paths - Reframe value proposition: guests can explore and solve immediately with local browser storage, but signing up is required to permanently preserve progress, sync streaks, and rank on the leaderboard - Add contextual in-workspace sign-up prompt when a guest user submits a solved problem - Add guest leaderboard callout to encourage creating an account to claim rankings - Maintain privacy compliance disclosures and register /leaderboard in design route catalog tests
…auth pages - Build Logo.dev resolver and CompanyLogo component with token integration and graceful fallback in src/lib/company-logo.ts and src/components/company/CompanyLogo.tsx - Add img.logo.dev remotePatterns and expose publishable key in next.config.ts - Add company logos to /companies directory cards, /companies/[slug] header, landing page company guides, problem detail tags, and dashboard company filters - Update Auth pages (SignInForm and SignUpForm) to use high-resolution PNG logo (/getcracked.png) instead of SVGs - Replace inline SVGs in SocialButtons with logo.dev PNG marks for Google and GitHub - Add comprehensive test suite in tests/company/company-logo.test.tsx
… in dashboard header - Replace generic ShieldCheck icon with CompanyLogo (Google, GitHub, etc.) under 'How you sign in' on the Account page - Elevate Leaderboard into a distinct, prominent feature card inside the Dashboard header at the top of the page
…tch panel size with DSA overview, and format tables - Set Assistant panel width to max-w-xl matching the DSA overview slidepanel (TopicPanel) - Enforce Balsamiq font across all AI Assistant text, headings, textarea, and markdown elements via @Utility font-node - Automatically convert keycap number emojis (1️⃣, 2️⃣, etc.) into clean markdown numbers (1., 2., etc.) and strip decorative emojis via sanitize helper - Prevent shifty response layout shifts by adding overflow-x-auto and break-words - Update system prompt with platform-first recommendations and strict no-emoji policy - Fix unformatted LaTeX in PersonalizedDashboard to 'Review schedule: 1d → 3d → 7d → 14d → 30d intervals' - Install remark-gfm and add token styling for tables, headings, and lists in Markdown.tsx - Replace emoji triggers across Workspace and Visualizer with Lucide icons (Sparkles, RotateCcw, X)
- Update Spine vertical positioning from top-0 to top-11 bottom-0 in src/components/learn/Roadmap.tsx
- Prevents the first TrackLabel ('Data Structures') from covering the top of the spine or having an awkward connector stub sticking out above the heading
…arance
- Move Spine top from top-11 to top-16 (64px) in src/components/learn/Roadmap.tsx
- Provides generous breathing room completely below the TrackLabel ('Data Structures') so the label no longer covers or touches any part of the spine
- Update topic cards under 'By topic' to match dashboard 'Where to go' cards (2-col grid, items-center justify-between with ArrowRight) - Wire up searchParams and filter bar with difficulty, topic, and company tags matching Dashboard
- Simplify Problems page (/problems) to exclusively showcase 'By topic' sets with dashboard-style cards, pointing learners to the dashboard catalog for global filtering - Author 4 high-yield DSA practice problems: Three Sum, Product of Array Except Self, Binary Tree Level Order Traversal, Longest Common Subsequence - Author Global Notification Service scenario lab covering message queues, idempotency, and vendor failover - Author Stripe verified interview guide in company directory - Add 'pnpm content:new' scaffold CLI tool (scripts/create-content.ts) to easily author new problems and content
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