Add project scope documentation for AI playgroup registration system

Define complete non-technical scope for replacing Google Forms registration
with an AI-powered conversational agent. Includes:

- Registration data requirements (13 fields with validation rules)
- Knowledge base content (fees, regulations, schedule, FAQ from official PDFs)
- Conversation flow design with bilingual support (German/English)
- Agent personality guidelines (warm & friendly tone)
- Admin notification routing by playgroup type
- Email reminder system for incomplete registrations
- Data export formats (CSV/JSON)
- Channel configuration (email + chat)
- Release priorities (MVP scope defined)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

openspec/changes/define-project-scope/content/notification-template.md

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+# Admin Notification Email Template
+
+## Subject Line
+
+```
+New Registration: [Child Name] for [Playgroup Type]
+```
+
+Examples:
+- `New Registration: Emma Müller for Indoor Playgroup`
+- `New Registration: Luca Weber for Indoor + Outdoor Playgroup`
+
+## Email Body
+
+```
+===============================================
+NEW PLAYGROUP REGISTRATION
+===============================================
+
+Submitted: [Date] at [Time]
+Channel: [Email / Chat]
+
+-----------------------------------------------
+CHILD INFORMATION
+-----------------------------------------------
+Name:           [Child's Full Name]
+Date of Birth:  [DOB] (Age: [calculated age])
+Special Needs:  [Details or "None"]
+
+-----------------------------------------------
+PLAYGROUP SELECTION
+-----------------------------------------------
+Type:           [Indoor / Outdoor / Both]
+Days:           [Monday, Wednesday, Thursday]
+
+Monthly Fee:    CHF [amount]
+(Plus CHF 80 registration fee if first enrollment)
+
+-----------------------------------------------
+PARENT/GUARDIAN
+-----------------------------------------------
+Name:           [Parent Name]
+Address:        [Street Address]
+                [Postal Code] [City]
+Phone:          [Phone Number]
+Email:          [Email Address]
+
+-----------------------------------------------
+EMERGENCY CONTACT
+-----------------------------------------------
+Name:           [Emergency Contact Name]
+Phone:          [Emergency Contact Phone]
+
+===============================================
+
+This registration was submitted via the automated
+registration assistant.
+
+[View full registration record →]
+
+```
+
+## HTML Version (Optional)
+
+For better formatting in email clients, an HTML version can include:
+- Playgroup logo in header
+- Color-coded sections
+- Clickable phone/email links
+- Button to view full record
+
+## Notification Settings
+
+**Send timing:** Immediately upon registration completion
+
+**Reply-to:** Set to parent's email so admin can reply directly
+
+### Routing by Playgroup Type
+
+| Registration Type | Send Notification To |
+|-------------------|---------------------|
+| Indoor only | Andrea Sigrist (andrea.sigrist@gmx.net) |
+| Outdoor only | Barbara Gross (baba.laeubli@gmail.com) |
+| Both Indoor + Outdoor | Both Andrea AND Barbara |
+| All registrations (CC) | Administration: Markus Graf (spielgruppen@familien-verein.ch) |
+
+*Note: When a child registers for both playgroups, both leaders receive the full notification. The administration is CC'd on all registrations.*
+
+---
+
+## Fields Included in Notification
+
+### Always Included (Required Fields)
+
+| Field | Source | Format |
+|-------|--------|--------|
+| Child's Full Name | registration.child.fullName | As entered |
+| Date of Birth | registration.child.dateOfBirth | DD.MM.YYYY |
+| Calculated Age | Computed from DOB | "X years, Y months" |
+| Special Needs | registration.child.specialNeeds | As entered |
+| Playgroup Type(s) | registration.booking.playgroupTypes | "Indoor" / "Outdoor" / "Indoor + Outdoor" |
+| Selected Days | registration.booking.selectedDays | Comma-separated list |
+| Monthly Fee | Computed from selection | "CHF X.-" |
+| Parent Name | registration.parentGuardian.fullName | As entered |
+| Parent Address | registration.parentGuardian.streetAddress | As entered |
+| Parent Postal Code | registration.parentGuardian.postalCode | As entered |
+| Parent City | registration.parentGuardian.city | As entered |
+| Parent Phone | registration.parentGuardian.phone | As entered |
+| Parent Email | registration.parentGuardian.email | As entered |
+| Emergency Contact Name | registration.emergencyContact.fullName | As entered |
+| Emergency Contact Phone | registration.emergencyContact.phone | As entered |
+| Submission Timestamp | registration.metadata.submittedAt | DD.MM.YYYY HH:MM |
+| Channel | registration.metadata.channel | "Email" / "Chat" |
+
+### Computed Fields
+
+| Field | Calculation |
+|-------|-------------|
+| Age | Current date - DOB, formatted as years and months |
+| Monthly Fee | Indoor: 130, Outdoor: 250, Both: 380 (before sibling discount) |
+
+### Not Included in Notification
+
+- Conversation ID (internal tracking only)
+- Full conversation history
+- Previous registration attempts