refactor: move buildable .NET source into src/, update CI/doc paths

Groups the repo root into src (buildable source), docs (already existed),
and everything else (db/, scripts/, tests/, deploy/ - deployment/ops/test
assets that aren't compiled, already organized as their own folders). CI
now only needs src/ to build: dotnet restore/build/test/publish all point
at src/TaxBaik.sln, src/TaxBaik.Web/, src/TaxBaik.Proxy/.

- git mv every project (Domain, Infrastructure, Application,
  Application.Tests, Web, Web.Client, Proxy) and TaxBaik.sln into src/ as a
  unit, so relative ProjectReference/.sln paths stay valid unchanged.
- .gitea/workflows/deploy.yml: 6 dotnet restore/clean/build/test/publish
  invocations now point at src/. db/migrations and scripts/ stay at root
  (deploy_gb.sh and browser-e2e.yml only touch published output and the
  deployed URL, not source paths - verified, no changes needed there).
- scripts/validate_admin_render.sh: admin render-mode file paths now
  src/TaxBaik.Web.Client/...
- scripts/validate_kst_timestamps.sh: dropped deploy.sh from its target
  list - that script was removed in the prior cleanup commit (dead, no
  CI workflow referenced it) but this validator still expected it to exist.
- CLAUDE.md, docs/ENGINEERING_HARNESS.md, docs/ADMIN_PATTERN_CRITIQUE_WBS.md:
  updated project-structure diagram, dotnet run/build commands, and grep
  targets to the new src/ paths (also fixed a pre-existing stale path in
  ADMIN_PATTERN_CRITIQUE_WBS.md that still said TaxBaik.Web/Components/Admin
  from before that ever moved to TaxBaik.Web.Client).
- Added a Repo Root harness rule + Architecture Guardrail entries: new files
  belong under src/docs/tests/scripts/db/deploy, not loose at root; temp
  work stays outside the repo (or under a gitignored .scratch/) and is
  never committed.

Verified locally: dotnet build/test src/TaxBaik.sln (26/26 tests), and all
three scripts/validate_*.sh pass against the new layout.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

TaxBaik.Web/wwwroot/js/admin-session.js

@@ -1,395 +0,0 @@
-window.taxbaikAdminSession = {
-    clientLogState: {
-        enabled: true,
-        windowStart: 0,
-        sentCount: 0,
-        suppressedCount: 0,
-        fingerprints: {},
-        eventCounts: {},
-        screen: '',
-        feature: '',
-        action: '',
-        step: '',
-        entity: '',
-        entityId: '',
-        dataKey: ''
-    },
-
-    initErrorLogging: function () {
-        if (window._taxbaikClientLogInitialized) return;
-        window._taxbaikClientLogInitialized = true;
-
-        const postLog = function (payload) {
-            try {
-                if (!window.taxbaikAdminSession.shouldSendClientLog(payload)) {
-                    return;
-                }
-
-                const body = JSON.stringify(payload);
-                if (navigator.sendBeacon) {
-                    const blob = new Blob([body], { type: 'application/json' });
-                    if (navigator.sendBeacon('/taxbaik/api/client-logs', blob)) {
-                        return;
-                    }
-                }
-
-                fetch('/taxbaik/api/client-logs', {
-                    method: 'POST',
-                    headers: { 'Content-Type': 'application/json' },
-                    body,
-                    keepalive: true
-                }).catch(function () { });
-            } catch {
-                // Logging must never break the UI.
-            }
-        };
-
-        window.taxbaikAdminSession.postClientLog = postLog;
-
-        window.addEventListener('error', function (event) {
-            postLog({
-                level: 'error',
-                source: 'window.error',
-                message: event.message || 'unknown error',
-                url: event.filename || window.location.href,
-                route: window.location.pathname + window.location.search,
-                screen: window.taxbaikAdminSession.clientLogState.screen || '',
-                feature: window.taxbaikAdminSession.clientLogState.feature || '',
-                action: window.taxbaikAdminSession.clientLogState.action || '',
-                step: window.taxbaikAdminSession.clientLogState.step || '',
-                entity: window.taxbaikAdminSession.clientLogState.entity || '',
-                entityId: window.taxbaikAdminSession.clientLogState.entityId || '',
-                dataKey: window.taxbaikAdminSession.clientLogState.dataKey || '',
-                buildVersion: window.taxbaikAdminBuildVersion || '',
-                component: window.taxbaikAdminComponent || '',
-                viewportWidth: window.taxbaikAdminSession.getViewportWidth(),
-                userAgent: navigator.userAgent || '',
-                stack: event.error?.stack || ''
-            });
-        });
-
-        window.addEventListener('unhandledrejection', function (event) {
-            const reason = event.reason;
-            postLog({
-                level: 'error',
-                source: 'window.unhandledrejection',
-                message: reason?.message || String(reason || 'unknown rejection'),
-                url: window.location.href,
-                route: window.location.pathname + window.location.search,
-                screen: window.taxbaikAdminSession.clientLogState.screen || '',
-                feature: window.taxbaikAdminSession.clientLogState.feature || '',
-                action: window.taxbaikAdminSession.clientLogState.action || '',
-                step: window.taxbaikAdminSession.clientLogState.step || '',
-                entity: window.taxbaikAdminSession.clientLogState.entity || '',
-                entityId: window.taxbaikAdminSession.clientLogState.entityId || '',
-                dataKey: window.taxbaikAdminSession.clientLogState.dataKey || '',
-                buildVersion: window.taxbaikAdminBuildVersion || '',
-                component: window.taxbaikAdminComponent || '',
-                viewportWidth: window.taxbaikAdminSession.getViewportWidth(),
-                userAgent: navigator.userAgent || '',
-                stack: reason?.stack || ''
-            });
-        });
-    },
-
-    setContext: function (screen, feature, action, step, entity, entityId, dataKey) {
-        const state = window.taxbaikAdminSession.clientLogState;
-        state.screen = screen || '';
-        state.feature = feature || '';
-        state.action = action || '';
-        state.step = step || '';
-        state.entity = entity || '';
-        state.entityId = entityId || '';
-        state.dataKey = dataKey || '';
-    },
-
-    shouldSendClientLog: function (payload) {
-        try {
-            const state = window.taxbaikAdminSession.clientLogState;
-            if (!state.enabled) return false;
-
-            const now = Date.now();
-            if (!state.windowStart || now - state.windowStart >= 60000) {
-                state.windowStart = now;
-                state.sentCount = 0;
-                state.suppressedCount = 0;
-                state.fingerprints = {};
-            }
-
-            const fingerprint = [
-                payload?.source || '',
-                payload?.message || '',
-                payload?.route || '',
-                payload?.component || '',
-                payload?.screen || '',
-                payload?.feature || '',
-                payload?.action || '',
-                payload?.entity || '',
-                payload?.entityId || ''
-            ].join('|').slice(0, 256);
-
-            state.fingerprints[fingerprint] = (state.fingerprints[fingerprint] || 0) + 1;
-
-            if (state.sentCount >= 8) {
-                state.suppressedCount += 1;
-                return false;
-            }
-
-            if (state.fingerprints[fingerprint] > 2) {
-                state.suppressedCount += 1;
-                return false;
-            }
-
-            state.sentCount += 1;
-            return true;
-        } catch {
-            return false;
-        }
-    },
-
-    traceUiState: function (source, details) {
-        try {
-            const payload = {
-                level: 'info',
-                source: source || 'ui-state',
-                message: details || '',
-                url: window.location.href,
-                route: window.location.pathname + window.location.search,
-                screen: window.taxbaikAdminSession.clientLogState.screen || '',
-                feature: window.taxbaikAdminSession.clientLogState.feature || '',
-                action: window.taxbaikAdminSession.clientLogState.action || '',
-                step: window.taxbaikAdminSession.clientLogState.step || '',
-                entity: window.taxbaikAdminSession.clientLogState.entity || '',
-                entityId: window.taxbaikAdminSession.clientLogState.entityId || '',
-                dataKey: window.taxbaikAdminSession.clientLogState.dataKey || '',
-                buildVersion: window.taxbaikAdminBuildVersion || '',
-                component: window.taxbaikAdminComponent || '',
-                viewportWidth: window.taxbaikAdminSession.getViewportWidth(),
-                userAgent: navigator.userAgent || '',
-                stack: ''
-            };
-
-            const state = window.taxbaikAdminSession.clientLogState;
-            const key = `${payload.source}|${payload.route}|${payload.message}`.slice(0, 256);
-            state.eventCounts[key] = (state.eventCounts[key] || 0) + 1;
-            if (state.eventCounts[key] > 1) {
-                return;
-            }
-
-            window.taxbaikAdminSession.postClientLog(payload);
-        } catch {
-            // diagnostics must never break UI.
-        }
-    },
-
-    postClientLog: function () {
-        // Replaced during initialization.
-    },
-
-    syncRouteClass: function () {
-        document.documentElement.classList.toggle(
-            'admin-login-route',
-            window.location.pathname.toLowerCase().endsWith('/admin/login'));
-    },
-
-    getViewportWidth: function () {
-        return window.innerWidth || document.documentElement.clientWidth || 0;
-    },
-
-    clearAuthToken: function () {
-        try {
-            localStorage.removeItem('accessToken');
-            localStorage.removeItem('refreshToken');
-            localStorage.removeItem('tokenExpiry');
-            localStorage.removeItem('auth_token');
-        } catch {
-            // Ignore storage errors; redirect still recovers the session.
-        }
-    },
-
-    showLoading: function () {
-        // Route transitions are handled by Blazor; avoid full-screen overlays
-        // that block drawer interaction and make the app feel frozen.
-        window.taxbaikAdminSession.traceUiState('admin-loading', 'showLoading requested');
-        window.taxbaikAdminSession.hideLoading();
-    },
-
-    hideLoading: function () {
-        const overlay = document.getElementById('blazor-loading');
-        if (overlay) {
-            overlay.classList.remove('show');
-        }
-
-        if (window._taxbaikLoadingTimeout) {
-            clearTimeout(window._taxbaikLoadingTimeout);
-            window._taxbaikLoadingTimeout = null;
-        }
-
-        if (window._taxbaikLoadingObserver) {
-            window._taxbaikLoadingObserver.disconnect();
-            window._taxbaikLoadingObserver = null;
-        }
-
-        window.taxbaikAdminSession.traceUiState('admin-loading', 'hideLoading completed');
-    },
-
-    watchReconnect: function () {
-        window.taxbaikAdminSession.syncRouteClass();
-        window.addEventListener('popstate', window.taxbaikAdminSession.syncRouteClass);
-        window.addEventListener('hashchange', window.taxbaikAdminSession.syncRouteClass);
-
-        if (document.documentElement.classList.contains('admin-login-route')) {
-            // Login prerenders immediately; no boot splash needed.
-            window.taxbaikAdminSession.hideLoading();
-        }
-        // Non-login routes: leave the overlay showing until AdminShell's
-        // OnAfterRenderAsync(firstRender) calls hideLoading once WASM has
-        // actually rendered the authenticated shell.
-
-        const modal = document.getElementById('components-reconnect-modal');
-        if (!modal) return;
-
-        const reloadOnRejectedCircuit = function () {
-            const className = modal.className || '';
-            if (className.includes('components-reconnect-failed') ||
-                className.includes('components-reconnect-rejected')) {
-                window.setTimeout(function () { window.location.reload(); }, 1500);
-            }
-        };
-
-        new MutationObserver(reloadOnRejectedCircuit)
-            .observe(modal, { attributes: true, attributeFilter: ['class'] });
-    },
-
-    bindLoginForm: function () {
-        const form = document.getElementById('admin-login-form');
-        if (!form) return;
-
-        // 업데이트 스플래시: 매번(재호출되어도) 무조건 다시 적용한다. Blazor가 WASM
-        // 하이드레이션 시점에 이 prerender된 서브트리를 자신의 렌더 결과로 다시 그리면
-        // 마크업에 정적으로 박혀 있던 disabled가 되살아날 수 있으므로, "한 번만 실행"
-        // 가드에 걸어두면 두 번째 호출(OnAfterRenderAsync 경유)이 조용히 무시되어
-        // 버튼이 영원히 비활성 상태로 남는다. 그래서 이 부분은 가드 밖에 둔다.
-        const readyButton = form.querySelector('#admin-login-submit');
-        if (readyButton) {
-            readyButton.disabled = false;
-            const label = readyButton.querySelector('span');
-            if (label) label.textContent = '로그인';
-        }
-
-        if (form.dataset.bound === '1') return;
-        form.dataset.bound = '1';
-        window.taxbaikAdminSession.traceUiState('admin-login', 'bindLoginForm attached');
-
-        form.addEventListener('submit', async function (event) {
-            event.preventDefault();
-
-            const username = form.querySelector('input[placeholder="사용자명"]')?.value?.trim() || '';
-            const password = form.querySelector('input[placeholder="비밀번호"]')?.value || '';
-            const rememberMe = form.querySelector('input[type="checkbox"]')?.checked || false;
-            const existing = form.parentElement.querySelector('.login-error-message');
-            const submitButton = form.querySelector('button[type="submit"]');
-
-            if (existing) existing.remove();
-            if (submitButton) submitButton.disabled = true;
-
-            try {
-                if (!username || !password) {
-                    throw new Error('username/password missing');
-                }
-
-                window.taxbaikAdminSession.traceUiState('admin-login', 'submit started');
-                const response = await fetch('/taxbaik/api/auth/login', {
-                    method: 'POST',
-                    headers: { 'Content-Type': 'application/json' },
-                    body: JSON.stringify({ username, password })
-                });
-
-                if (!response.ok) {
-                    throw new Error('login failed');
-                }
-
-                const data = await response.json();
-                if (!data?.accessToken || !data?.refreshToken) {
-                    throw new Error('invalid response');
-                }
-
-                window.taxbaikAdminSession.traceUiState('admin-login', 'submit success');
-                const expiryTicks = 621355968000000000 + ((Date.now() + (data.expiresIn || 3600) * 1000) * 10000);
-                localStorage.setItem('accessToken', data.accessToken);
-                localStorage.setItem('refreshToken', data.refreshToken);
-                localStorage.setItem('tokenExpiry', String(expiryTicks));
-
-                if (rememberMe) {
-                    localStorage.setItem('admin-remembered-username', username);
-                } else {
-                    localStorage.removeItem('admin-remembered-username');
-                }
-
-                window.location.href = '/taxbaik/admin/dashboard';
-            } catch (error) {
-                window.taxbaikAdminSession.traceUiState('admin-login', `submit failed: ${error?.message || 'login failed'}`);
-                postLog({
-                    level: 'error',
-                    source: 'admin-login-form',
-                    message: error?.message || 'login failed',
-                    url: window.location.href,
-                    route: window.location.pathname + window.location.search,
-                    buildVersion: window.taxbaikAdminBuildVersion || '',
-                    component: 'AdminLoginForm',
-                    viewportWidth: window.taxbaikAdminSession.getViewportWidth(),
-                    userAgent: navigator.userAgent || '',
-                    stack: error?.stack || ''
-                });
-                const errorMessage = document.createElement('div');
-                errorMessage.className = 'mud-alert mud-alert-filled-error login-error-message mb-4';
-                errorMessage.textContent = '로그인 중 오류가 발생했습니다.';
-                form.parentElement.insertBefore(errorMessage, form);
-            } finally {
-                if (submitButton) submitButton.disabled = false;
-            }
-        });
-    }
-};
-
-// 더존 ERP 스타일 엔터 키 포커스 이동 및 단축키 바인딩
-document.addEventListener('keydown', function (e) {
-    if (e.key === 'Enter') {
-        const active = document.activeElement;
-        if (!active) return;
-        
-        // 특정 영역(편집 폼 또는 다이얼로그) 내의 입력 필드만 포커스 이동 처리
-        const container = active.closest('.admin-editor-panel, .mud-form, .mud-dialog');
-        if (!container) return;
-
-        // textarea나 button, submit 타입 등은 기본 동작(줄바꿈/제출) 유지
-        if (active.tagName === 'TEXTAREA' || 
-            active.tagName === 'BUTTON' || 
-            active.getAttribute('type') === 'submit' ||
-            active.classList.contains('mud-button-root')) {
-            return;
-        }
-
-        e.preventDefault();
-
-        // 포커스 이동 가능한 모든 입력 요소 수집
-        const focusables = Array.from(container.querySelectorAll('input, select, textarea, button'))
-            .filter(el => {
-                const style = window.getComputedStyle(el);
-                return el.tabIndex >= 0 && 
-                       !el.disabled && 
-                       el.getAttribute('aria-disabled') !== 'true' &&
-                       style.display !== 'none' && 
-                       style.visibility !== 'hidden';
-            });
-
-        const index = focusables.indexOf(active);
-        if (index > -1 && index < focusables.length - 1) {
-            const nextEl = focusables[index + 1];
-            nextEl.focus();
-            if (typeof nextEl.select === 'function') {
-                nextEl.select();
-            }
-        }
-    }
-});