Zauberwald/.planning/phases/02-gemini-integration-asset-pipeline/02-05-SUMMARY.md

phase, plan, subsystem, tags, requires, provides, affects, tech-stack, key-files, key-decisions, patterns-established, requirements-completed, duration, completed

phase	plan	subsystem	tags	requires	provides	affects	tech-stack	key-files	key-decisions	patterns-established	requirements-completed	duration	completed
02-gemini-integration-asset-pipeline	05	ui	vite-assets companion avatar greeting fallback	phase provides 02-03 Generated avatar PNGs in src/assets/companions/ phase provides 02-04 getGreeting() companion text function with API/fallback	Avatar images displayed on welcome screen companion cards Companion greeting with avatar on forest screen for returning users Companion avatar visible in lesson screen Emoji fallback when avatar images fail to load	03-lesson-phases 04-forest-rewards	added patterns Vite static import for PNG asset URL resolution onerror img fallback to emoji span	created modified src/vite-env.d.ts src/companion/characters.ts src/ui/screens.ts src/app.ts src/styles/main.css index.html src/companion/fallbacks.ts	Vite static imports for avatar PNGs (hashed URLs in production builds) onerror handler hides img and shows emoji fallback for graceful degradation Greeting text fetched async after avatar shown immediately	Avatar fallback: img with onerror hiding img and showing sibling emoji span Companion area: reusable .companion-area CSS class for avatar+text layouts	ASST-03 ASST-04	3min	2026-03-29

Phase 02 Plan 05: UI Integration Summary

Welcome screen avatar images via Vite static imports with emoji fallback, companion greeting on forest screen, and companion avatar in lesson screen

Performance

• Duration: 3 min
• Started: 2026-03-29T10:13:07Z
• Completed: 2026-03-29T10:16:07Z
• Tasks: 3 (2 auto + 1 checkpoint auto-approved)
• Files modified: 7

Accomplishments

• Welcome screen companion cards now show real generated avatar PNGs instead of emoji
• Forest screen displays companion avatar with AI-generated or fallback greeting text for returning users
• Lesson screen shows companion avatar above the typing exercise area
• Emoji fallback via onerror handler ensures graceful degradation when images fail

Task Commits

Each task was committed atomically:

1. Task 1: Add avatar URLs to companion definitions and update welcome screen - 2cf7687 (feat)
2. Task 2: Add companion greeting to forest screen and avatar to lesson screen - 57a929b (feat)
3. Task 3: Visual verification of Phase 2 integration - auto-approved checkpoint, no separate commit

Files Created/Modified

• src/vite-env.d.ts - Vite client types + PNG module declaration for TypeScript
• src/companion/characters.ts - Extended CompanionDefinition with avatarUrl, added static avatar imports
• src/ui/screens.ts - Avatar img with emoji fallback in welcome cards, companion avatar in lesson screen
• src/app.ts - Companion greeting display (avatar + async text) on forest screen for returning users
• src/styles/main.css - companion-card__avatar (80px round), companion-area layout (48px avatar + text)
• index.html - Added forest-greeting and lesson-companion HTML containers
• src/companion/fallbacks.ts - Fixed noUncheckedIndexedAccess errors with nullish coalescing

Decisions Made

• Used Vite static imports (import ... from "*.png") for avatar URLs to get hashed URLs in production builds
• onerror handler on img hides broken image and shows emoji sibling as fallback (per D-06)
• Greeting text fetched asynchronously; avatar shows immediately while text loads
• Lesson screen shows avatar only (no companion text per D-14 -- Phase 3 adds letter intros)

Deviations from Plan

Auto-fixed Issues

1. [Rule 3 - Blocking] Added vite-env.d.ts for PNG import type declarations

• Found during: Task 1
• Issue: TypeScript cannot resolve .png imports without type declarations
• Fix: Created src/vite-env.d.ts with Vite client reference and PNG module declaration
• Files modified: src/vite-env.d.ts
• Verification: tsc --noEmit passes for new imports
• Committed in: 2cf7687 (Task 1 commit)

2. [Rule 3 - Blocking] Fixed noUncheckedIndexedAccess errors in fallbacks.ts

• Found during: Task 2
• Issue: Pre-existing TS errors in fallbacks.ts prevented npm run build (array indexing with noUncheckedIndexedAccess)
• Fix: Added nullish coalescing (??) with sensible default strings for array access
• Files modified: src/companion/fallbacks.ts
• Verification: npm run build succeeds
• Committed in: 57a929b (Task 2 commit)

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Total deviations: 2 auto-fixed (2 blocking) Impact on plan: Both fixes necessary for build to succeed. No scope creep.

Issues Encountered

None beyond the auto-fixed blocking issues.

User Setup Required

None - no external service configuration required.

Next Phase Readiness

• Phase 02 (Gemini Integration + Asset Pipeline) is now complete
• All companion avatars, greetings, and visual integration are wired up
• Ready for Phase 03 (lesson phases with letter introductions, forest rewards)

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Phase: 02-gemini-integration-asset-pipeline Completed: 2026-03-29