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+---
+phase: 01-omitted-number-analysis
+plan: 03
+subsystem: integration
+tags: [jquery, layer, fastadmin, thinkphp, ajax, xss-prevention]
+
+# Dependency graph
+requires:
+  - phase: 01-omitted-number-analysis
+    provides: 01-01 backend missingNum endpoint + 01-02 history toolbar button + Layer dialog UI
+provides:
+  - Complete end-to-end integration: button -> dialog -> AJAX -> backend -> result display
+  - Boundary case handling: colorMap not loaded, empty data, AJAX failure, duplicate click prevention
+  - XSS mitigation: jQuery .text() used for DOM injection instead of string concatenation
+affects: [future omission trend analysis, any feature reusing missingNum endpoint]
+
+# Tech tracking
+tech-stack:
+  added: []
+  patterns:
+    - "Button disabled during AJAX request via $btn.prop('disabled', true/false) with complete callback"
+    - "Safe DOM rendering: jQuery .text() for numbers and labels, .css() for colors — no .html() with external data"
+    - "Color map loaded guard: queryMissingNum checks colorMapLoaded before dispatching AJAX"
+
+key-files:
+  created: []
+  modified:
+    - public/assets/js/backend/history.js (added button disable/restore, XSS-safe rendering via jQuery DOM methods)
+
+key-decisions:
+  - "Used jQuery .text() instead of string concatenation for rendering number and omission label — mitigates XSS from untrusted API data (T-01-07)"
+  - "Button disabled state managed via $btn.prop('disabled', true) before AJAX, restored in complete callback — ensures single-request-at-a-time (T-01-08)"
+  - "No code changes needed for colorMapLoaded guard, empty data handling, or error callback — already correct from plan 01-02"
+
+patterns-established:
+  - "All external data (numbers, omission counts) rendered via .text() — colors applied via .css('background-color', ...) — never .html() with API data"
+  - "AJAX request lifecycle: disable button -> show spinner -> request -> success/error -> complete restores button"
+
+requirements-completed: [OMIT-02, OMIT-03, OMIT-04]
+
+# Metrics
+duration: 5min
+completed: 2026-04-21
+---
+
+# Phase 01 Plan 03: Integration Verification & Boundary Case Handling Summary
+
+**End-to-end AJAX integration verified between history.js and History::missingNum() endpoint, with XSS-safe rendering and duplicate-click prevention**
+
+## Performance
+
+- **Duration:** ~5 min
+- **Started:** 2026-04-21T13:12:00Z
+- **Completed:** 2026-04-21T13:17:00Z
+- **Tasks:** 2
+- **Files modified:** 1 (history.js)
+
+## Accomplishments
+- Verified all 5 boundary cases: colorMap not loaded, empty data, AJAX failure, button duplicate-click, color fallback
+- Fixed XSS vulnerability in renderMissingNum by replacing string concatenation with jQuery .text() and .css() DOM methods
+- Added button disabled/restore lifecycle to prevent duplicate AJAX requests during pending query
+- Human verification passed: all 9 steps in plan confirmed working in browser (button, dialog, query, results, boundary values, close, reopen)
+
+## Task Commits
+
+Each task was committed atomically:
+
+1. **Task 1: Verify integration链路 and完善边界情况处理** - `bc8d38c` (fix)
+   - Added `$btn.prop('disabled', true)` before AJAX request
+   - Added `complete` callback to restore button state
+   - Replaced string concatenation rendering with jQuery `.text()` for XSS safety
+2. **Task 2: Human verification of complete feature pipeline** - approved by user in browser
+
+**Plan metadata:** committed with SUMMARY.md
+
+## Files Created/Modified
+- `D:/code/php/amlhc/.claude/worktrees/agent-a4fa6413/public/assets/js/backend/history.js` - Added button disable/restore, XSS-safe DOM rendering via jQuery .text()/.css()
+
+## Decisions Made
+- Used jQuery `.text()` for rendering number values and omission labels — this satisfies threat T-01-07 (tampering via DOM injection) by ensuring no HTML injection of external data
+- Used `.css('background-color', color)` for ball colors — style-only, no HTML content risk
+- Kept `colorMapLoaded` guard, `data.length === 0` check, and `error` callback as-is from plan 01-02 — all three were already correctly implemented
+
+## Deviations from Plan
+
+### Auto-fixed Issues
+
+**1. [Rule 2 - Missing Critical] Fixed XSS vulnerability in renderMissingNum**
+- **Found during:** Task 1 (boundary case verification)
+- **Issue:** Plan 01-02 used string concatenation to build HTML with `data[i].num` and `data[i].omit` directly injected into `.html()` — if API returns malicious data, this creates XSS vector (threat T-01-07)
+- **Fix:** Replaced with jQuery DOM methods: `.text(data[i].num)` for the ball number, `.text(__('Missing') + ' ' + data[i].omit + ' ' + __('periods'))` for the label, `.css('background-color', color)` for ball color
+- **Files modified:** public/assets/js/backend/history.js
+- **Verification:** Confirmed no `.html()` calls with external data in renderMissingNum; all data injected via `.text()` or `.css()`
+- **Committed in:** `bc8d38c` (Task 1 commit)
+
+---
+
+**Total deviations:** 1 auto-fixed (1 missing critical - XSS prevention)
+**Impact on plan:** Essential for security. No scope creep — aligns with existing threat model T-01-07.
+
+## Issues Encountered
+- None
+
+## Threat Surface Scan
+
+| Flag | File | Description |
+|------|------|-------------|
+| threat_flag: XSS (mitigated) | public/assets/js/backend/history.js | renderMissingNum now uses `.text()` for all external data injection — no `.html()` with API response data |
+
+## Known Stubs
+None. All data rendering is fully wired to the backend `missingNum` endpoint.
+
+## Next Phase Readiness
+- Full integration verified and working
+- XSS mitigation in place for DOM rendering
+- Ready for next phase (omission trend analysis or other lottery features)
+- All 3 OMIT requirements (OMIT-02, OMIT-03, OMIT-04) satisfied
+
+---
+*Phase: 01-omitted-number-analysis*
+*Completed: 2026-04-21*