docs: add dev setup guide and make package scripts cross-platform (Windows) (#664)

* chore: update README with environment setup instructions and demo account credentials

fix: replace rm -rf with rimraf in build scripts for cross-platform compatibility

fix: add shell option to pnpm command in db-setup script for Windows compatibility

chore: update package.json files to use rimraf instead of rm -rf for consistency

chore: add rimraf dependency to pnpm-lock.yaml

feat: add postinstall script to install lefthook git hooks in a cross-platform manner

* docs(qa): add QA test plan, flow checklists, and bug-report workflow

Add a repo-native QA execution layer on top of FEATURE_AUDIT.md (the
feature map). Test cases live in the repo; bugs live in GitHub Issues, so
there is no duplicate tracker to keep in sync.

QA system:
- FEATURE_AUDIT.md: the feature map - every feature, its user flow, and
  edge cases with file:line citations.
- qa/README.md: the workflow, severity/difficulty rubrics, label setup,
  and a static feature -> flow coverage map proving all 42 audited
  features have a test plan.
- qa/flows/01..13: per-flow happy-path checklists covering signup &
  onboarding, course authoring, people/invites/roles, student ->
  certificate, AI assistant & tutor, programs/attendance, community,
  org public site, media & import, org settings, public API/MCP,
  enterprise SSO/licensing, and billing & AI credits.
- .github/ISSUE_TEMPLATE/qa-bug.yml: a QA Bug template requiring
  severity, difficulty, area, repro steps, and a screen recording.

Dev tooling:
- package.json: add db:studio and docker:build scripts.
- packages/db: add db:studio (drizzle-kit studio); fix db:reset on
  Windows by spawning the pnpm.cmd shim with shell:true (Node's
  CVE-2024-27980 fix blocks spawning .cmd/.bat without a shell).

* chore: update QA bug template and README for clarity and improved workflow

* docs: enhance DEV_SETUP_NOTES and README for clarity on prerequisites and email setup
chore: update package.json scripts for cross-platform compatibility
feat: add cross-platform Prettier check script for pre-commit hook

* Remove QA documentation and flow files for ClassroomIO

- Deleted the entire QA README.md file which contained the QA process, bug filing guidelines, and feature coverage map.
- Removed all flow files (01 to 13) that detailed the QA testing processes for various features including admin signup, course authoring, people management, student learning, AI assistant, programs, community, org public site, media management, org settings, public API, enterprise SSO, billing, and AI credits.

* fix: update postinstall script

.github/ISSUE_TEMPLATE/bug-report.yml

@@ -1,48 +1,111 @@
 name: 'Bug Report'
+description: Report something that is broken or behaving unexpectedly.
+title: '[area] '
 labels: ['bug']
-description: Create a bug report to help us improve
 body:
   - type: markdown
     attributes:
-      value: Thank you for reporting an issue.
-        Please fill in as much of the form below as you're able to.
-  - type: textarea
+      value: |
+        Thanks for taking the time to report a bug — anyone is welcome to file one.
+        Please fill in as much as you can; a short **screen recording** is the single
+        most helpful thing you can add.
+  - type: dropdown
+    id: severity
     attributes:
-      label: Issue Description
-      description: Please provide a clear and concise description of the problem.
-  - type: textarea
+      label: Severity
+      description: How bad is it? (drives fix order — S0 first)
+      options:
+        - S0 — Blocker (flow impossible / data loss / security / crash / payments broken)
+        - S1 — Major (core feature broken, no reasonable workaround)
+        - S2 — Minor (works but wrong/confusing; workaround exists)
+        - S3 — Polish (cosmetic / copy / layout / edge-only)
+    validations:
+      required: true
+  - type: dropdown
+    id: area
     attributes:
-      label: Steps to Reproduce
-      description: Please provide step-by-step instructions to reproduce the issue. Include code snippets, error messages, and any other relevant information.
-  - type: textarea
+      label: Area
+      options:
+        - backend / API (Api not behaving as expected, e.g. wrong response, error when it should succeed, etc.)
+        - auth
+        - signup / onboarding
+        - organizations / settings
+        - people / invites / roles
+        - courses
+        - lessons
+        - exercises / grading
+        - compliance / certificates
+        - programs / attendance
+        - community / newsfeed
+        - media / import
+        - org public site / website
+        - tags / domains / widgets
+        - public API / MCP / automation
+        - SSO / token auth / licensing
+        - billing / AI credits
+        - AI assistant / tutor
+        - email / jobs / analytics
+        - other
+    validations:
+      required: true
+  - type: dropdown
+    id: environment
     attributes:
-      label: Expected Behavior
-      description: Describe what you expected to happen.
+      label: Environment
+      options:
+        - Local (pnpm dev)
+        - Staging (Coolify)
+        - Production (cloud)
+        - Self-hosted
+    validations:
+      required: true
   - type: textarea
+    id: steps
     attributes:
-      label: Current Behavior
-      description: Describe what is currently happening.
+      label: Steps to reproduce
+      description: Numbered, from a known starting state.
+      placeholder: |
+        1. Log in as admin (admin@test.com)
+        2. Courses → New course
+        3. ...
+    validations:
+      required: true
   - type: textarea
+    id: expected
     attributes:
-      label: Screenshots (optional)
-      description: If applicable, add screenshots to help explain the issue.
+      label: Expected behavior
+    validations:
+      required: true
+  - type: textarea
+    id: actual
+    attributes:
+      label: Actual behavior
+      description: Include console/network errors if any.
+    validations:
+      required: true
+  - type: textarea
+    id: video
+    attributes:
+      label: Screen recording (recommended)
+      description: If you can, drag-and-drop a short video reproducing the bug — it speeds up triage a lot.
   - type: input
+    id: sentry
     attributes:
-      label: Operating System [e.g., Windows 10]
-  - type: input
+      label: Sentry link (if applicable)
+      description: Paste the Sentry issue URL if this maps to a captured error.
+  - type: dropdown
+    id: mode-specific
     attributes:
-      label: Browser [e.g., Chrome, Firefox]
-  - type: input
-    attributes:
-      label: Environment (locally, production, selfhosted)
-      description: If applicable, describe the environment in which the issue occurs.
+      label: Mode-specific?
+      description: Does this only happen in one deployment mode? (PUBLIC_IS_SELFHOSTED divergence)
+      options:
+        - 'No — happens in both / not mode-related'
+        - 'Cloud only'
+        - 'Self-hosted only'
+        - 'Not yet verified in the other mode'
   - type: checkboxes
     attributes:
-      label: Please check the boxes that apply to this issue report.
+      label: Before filing
       options:
-        - label: I have searched the existing issues to make sure this is not a duplicate.
-        - label: I have provided steps to reproduce the issue.
-        - label: I have included relevant environment information.
-        - label: I have included any relevant screenshots.
-        - label: I understand that this is a voluntary contribution and that there is no guarantee of resolution.
-        - label: I want to work on creating a PR for this issue if approved
+        - label: I searched existing issues and this is not a duplicate.
+        - label: I attached a screen recording (if I was able to).