feat(auth,docs): add AGENTS guidelines, consistency kit, particle background, solid card, logo swap, header toggles, signup password rules, and phone input border fix

.github/ISSUE_TEMPLATE/ai-task.yml

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+name: AI Task
+description: Brief for the coding agent to implement features consistently
+title: "[AI] <short title>"
+labels: [ai-task]
+body:
+  - type: input
+    id: project_path
+    attributes:
+      label: Project path
+      description: Path of the target app (e.g., kediritechnopark-app)
+      placeholder: kediritechnopark-app
+    validations:
+      required: true
+  - type: textarea
+    id: objective
+    attributes:
+      label: Objective
+      description: What to build and why
+      placeholder: e.g., Build pricing card with tiers and CTA
+    validations:
+      required: true
+  - type: textarea
+    id: requirements
+    attributes:
+      label: Requirements
+      description: States, a11y, tests, performance, theming, i18n
+    validations:
+      required: true
+  - type: textarea
+    id: deliverables
+    attributes:
+      label: Deliverables
+      description: Files and paths to create or modify
+      placeholder: |
+        src/components/PricingCard/PricingCard.tsx
+        src/components/PricingCard/types.ts
+        src/components/PricingCard/PricingCard.test.tsx
+    validations:
+      required: true
+  - type: textarea
+    id: constraints
+    attributes:
+      label: Constraints
+      description: Perf budget, API contracts, dependency limits
+  - type: textarea
+    id: acceptance
+    attributes:
+      label: Definition of Done
+      description: Validation criteria (build/lint/tests pass, coverage, screenshots)
+

.github/PULL_REQUEST_TEMPLATE.md

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+## Summary
+Closes #
+
+## Scope
+- What/why in 1–2 sentences
+- Affected areas (files, routes, components)
+
+## Screenshots / Videos
+If UI changed, include before/after and dark mode.
+
+## Checklist
+- [ ] Build OK
+- [ ] Lint OK
+- [ ] Tests added/updated and passing
+- [ ] A11y checked (labels, roles, keyboard, focus)
+- [ ] Handles states (loading/empty/error)
+- [ ] Dark mode verified
+- [ ] Docs updated (AGENTS.md or component README where relevant)
+