Sprint 15: Suche, Ausweis, Teilen, Widget

- Volltext-Suche im Tagebuch (LIKE über Titel/Text/Tags, Debounce 350ms)
- Digitaler Heimtierausweis als druckbare HTML-Seite (/ausweis/{dog_id})
  Enthält Impfungen, Medikamente, Allergien, Tierärzte, Chip-Nr.
- Hund teilen: Einladungslink-System (dog_shares-Tabelle, /teilen/{token})
  Geteilte Hunde erscheinen in der Hundeliste, Tagebuch/Gesundheit lesbar
- Widget-Seite /#widget: zufälliges Tagebuchbild + nächste Erinnerung
  Als PWA-Shortcut im Manifest verankert
- SW-Cache by-v144, APP_VER 117

backend/main.py

@@ -74,6 +74,8 @@ from routes.admin       import router as admin_router
 from routes.webcal      import router as webcal_router
 from routes.profile     import router as profile_router
 from routes.import_data import router as import_router
+from routes.sharing    import dog_router as sharing_dog_router, share_router as sharing_share_router
+from routes.widget     import router as widget_router
 
 app.include_router(auth_router,       prefix="/api/auth",       tags=["Auth"])
 app.include_router(dogs_router,       prefix="/api/dogs",       tags=["Hunde"])
@@ -99,7 +101,10 @@ app.include_router(chat_router,       prefix="/api/chat",       tags=["Chat"])
 app.include_router(admin_router,      prefix="/api/admin",      tags=["Admin"])
 app.include_router(webcal_router,     prefix="/api/webcal",     tags=["WebCal"])
 app.include_router(profile_router,    prefix="/api/profile",    tags=["Profil"])
-app.include_router(import_router,     prefix="/api/import",     tags=["Import"])
+app.include_router(import_router,          prefix="/api/import",  tags=["Import"])
+app.include_router(sharing_dog_router,     prefix="/api/dogs",    tags=["Teilen"])
+app.include_router(sharing_share_router,   prefix="/api/share",   tags=["Teilen"])
+app.include_router(widget_router,          prefix="/api/widget",  tags=["Widget"])
 
 
 # ------------------------------------------------------------------
@@ -445,6 +450,212 @@ async def public_dog_page(dog_id: int):
     return HTMLResponse(content=html)
 
 
+# ------------------------------------------------------------------
+# Einladungsseite  /teilen/{token}  — SPA lädt + nimmt Einladung an
+# ------------------------------------------------------------------
+@app.get("/teilen/{token}")
+async def invite_page(token: str):
+    return FileResponse(f"{STATIC_DIR}/index.html", headers={"Cache-Control": "no-cache"})
+
+
+# ------------------------------------------------------------------
+# Widget-Vorschau  /widget
+# ------------------------------------------------------------------
+@app.get("/widget")
+async def widget_page():
+    return FileResponse(f"{STATIC_DIR}/index.html", headers={"Cache-Control": "no-cache"})
+
+
+# ------------------------------------------------------------------
+# Digitaler Heimtierausweis  /ausweis/{dog_id}
+# ------------------------------------------------------------------
+@app.get("/ausweis/{dog_id}")
+async def ausweis_page(dog_id: int, request: Request):
+    from fastapi.responses import HTMLResponse
+    from auth import get_current_user_optional, decode_token
+    import json as _json
+
+    # Auth via Cookie
+    token = request.cookies.get("by_token")
+    user_id = None
+    if token:
+        try:
+            payload = decode_token(token)
+            user_id = int(payload["sub"])
+        except Exception:
+            pass
+
+    if not user_id:
+        return HTMLResponse(
+            '<meta charset="UTF-8"><p style="font-family:sans-serif;padding:2rem">'
+            'Bitte <a href="/">einloggen</a> um den Ausweis anzuzeigen.</p>',
+            status_code=401
+        )
+
+    from database import db as _db
+    with _db() as conn:
+        dog = conn.execute(
+            """SELECT d.* FROM dogs d
+               LEFT JOIN dog_shares ds ON ds.dog_id=d.id AND ds.shared_with_id=? AND ds.accepted_at IS NOT NULL
+               WHERE d.id=? AND (d.user_id=? OR ds.id IS NOT NULL)""",
+            (user_id, dog_id, user_id)
+        ).fetchone()
+        if not dog:
+            return HTMLResponse("<p>Hund nicht gefunden.</p>", status_code=404)
+
+        owner = conn.execute("SELECT name, email FROM users WHERE id=?", (dog["user_id"],)).fetchone()
+
+        health_rows = conn.execute(
+            "SELECT * FROM health WHERE dog_id=? ORDER BY datum DESC",
+            (dog_id,)
+        ).fetchall()
+
+        vets = conn.execute(
+            """SELECT DISTINCT t.name, t.strasse, t.plz, t.ort, t.telefon
+               FROM tieraerzte t
+               JOIN health h ON h.tierarzt_id = t.id
+               WHERE h.dog_id=?""",
+            (dog_id,)
+        ).fetchall()
+
+    dog  = dict(dog)
+    vets = [dict(v) for v in vets]
+
+    def esc(s):
+        if not s: return ""
+        return str(s).replace("&","&amp;").replace("<","&lt;").replace(">","&gt;").replace('"',"&quot;")
+
+    def fmt_date(d):
+        if not d: return "–"
+        try:
+            from datetime import date
+            parts = d.split("-")
+            return f"{int(parts[2])}.{int(parts[1])}.{parts[0]}"
+        except Exception:
+            return d
+
+    geschlecht = {"m": "Rüde", "w": "Hündin"}.get(dog.get("geschlecht",""), "–")
+
+    # Impfungen
+    impfungen = [r for r in health_rows if r["typ"] == "impfung"]
+    # Medikamente (aktiv)
+    medis     = [r for r in health_rows if r["typ"] == "medikament" and r["aktiv"]]
+    # Allergien
+    allergien = [r for r in health_rows if r["typ"] == "allergie"]
+
+    def health_rows_html(rows, cols):
+        if not rows:
+            return '<tr><td colspan="99" style="color:#999;font-style:italic">Keine Einträge</td></tr>'
+        out = ""
+        for r in rows:
+            out += "<tr>" + "".join(f"<td>{esc(r[c])}</td>" for c in cols) + "</tr>"
+        return out
+
+    photo_html = f'<img src="{esc(dog["foto_url"])}" alt="{esc(dog["name"])}" class="dog-photo">' if dog.get("foto_url") else '<div class="dog-photo-placeholder">🐕</div>'
+
+    vets_html = ""
+    for v in vets:
+        addr = ", ".join(filter(None, [v.get("strasse"), v.get("plz"), v.get("ort")]))
+        vets_html += f'<div class="vet-card"><strong>{esc(v["name"])}</strong>'
+        if addr: vets_html += f'<br><small>{esc(addr)}</small>'
+        if v.get("telefon"): vets_html += f'<br><small>☎ {esc(v["telefon"])}</small>'
+        vets_html += "</div>"
+    if not vets_html:
+        vets_html = '<span style="color:#999;font-style:italic">Keine Tierärzte eingetragen</span>'
+
+    html = f"""<!DOCTYPE html>
+<html lang="de">
+<head>
+<meta charset="UTF-8">
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<title>Heimtierausweis – {esc(dog["name"])}</title>
+<style>
+  * {{ box-sizing: border-box; margin: 0; padding: 0; }}
+  body {{ font-family: "Segoe UI", Arial, sans-serif; background: #FAF7F2; color: #1a1a1a; padding: 2rem; }}
+  .ausweis {{ max-width: 800px; margin: 0 auto; background: #fff; border-radius: 12px; box-shadow: 0 2px 20px rgba(0,0,0,.08); overflow: hidden; }}
+  .header {{ background: linear-gradient(135deg, #C4843A, #e8a857); color: #fff; padding: 2rem; display: flex; gap: 1.5rem; align-items: center; }}
+  .dog-photo {{ width: 100px; height: 100px; border-radius: 50%; object-fit: cover; border: 3px solid rgba(255,255,255,.6); flex-shrink: 0; }}
+  .dog-photo-placeholder {{ width: 100px; height: 100px; border-radius: 50%; background: rgba(255,255,255,.2); display: flex; align-items: center; justify-content: center; font-size: 2.5rem; flex-shrink: 0; }}
+  .header-info h1 {{ font-size: 1.8rem; font-weight: 700; }}
+  .header-info .rasse {{ opacity: .85; font-size: 1rem; margin-top: .2rem; }}
+  .meta-grid {{ display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: .5rem; margin-top: 1rem; }}
+  .meta-item {{ background: rgba(255,255,255,.15); border-radius: 8px; padding: .5rem .75rem; }}
+  .meta-item .label {{ font-size: .65rem; opacity: .8; text-transform: uppercase; letter-spacing: .05em; }}
+  .meta-item .value {{ font-weight: 600; font-size: .9rem; margin-top: .1rem; }}
+  .body {{ padding: 1.5rem 2rem; }}
+  .section {{ margin-bottom: 1.5rem; }}
+  .section h2 {{ font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: #C4843A; font-weight: 700; margin-bottom: .75rem; padding-bottom: .4rem; border-bottom: 2px solid #f0e8dc; }}
+  table {{ width: 100%; border-collapse: collapse; font-size: .85rem; }}
+  th {{ text-align: left; font-size: .7rem; text-transform: uppercase; letter-spacing: .05em; color: #888; font-weight: 600; padding: .4rem .5rem; border-bottom: 1px solid #eee; }}
+  td {{ padding: .45rem .5rem; border-bottom: 1px solid #f5f5f5; vertical-align: top; }}
+  tr:last-child td {{ border-bottom: none; }}
+  .vet-card {{ display: inline-block; background: #f9f6f2; border: 1px solid #ede5d8; border-radius: 8px; padding: .6rem 1rem; margin-right: .5rem; margin-bottom: .5rem; font-size: .85rem; line-height: 1.5; }}
+  .print-btn {{ display: block; margin: 0 auto 1.5rem; padding: .6rem 2rem; background: #C4843A; color: #fff; border: none; border-radius: 8px; font-size: 1rem; cursor: pointer; }}
+  .footer {{ text-align: center; padding: 1rem; font-size: .7rem; color: #aaa; border-top: 1px solid #f0f0f0; }}
+  @media print {{
+    body {{ background: #fff; padding: 0; }}
+    .ausweis {{ box-shadow: none; border-radius: 0; }}
+    .print-btn {{ display: none; }}
+    .no-print {{ display: none; }}
+  }}
+</style>
+</head>
+<body>
+<div class="ausweis">
+  <div class="header">
+    {photo_html}
+    <div class="header-info">
+      <h1>{esc(dog["name"])}</h1>
+      <div class="rasse">{esc(dog.get("rasse") or "Rasse unbekannt")}</div>
+      <div class="meta-grid">
+        <div class="meta-item"><div class="label">Geburtstag</div><div class="value">{fmt_date(dog.get("geburtstag"))}</div></div>
+        <div class="meta-item"><div class="label">Geschlecht</div><div class="value">{geschlecht}</div></div>
+        <div class="meta-item"><div class="label">Gewicht</div><div class="value">{f'{dog["gewicht_kg"]} kg' if dog.get("gewicht_kg") else "–"}</div></div>
+        <div class="meta-item"><div class="label">Transponder</div><div class="value">{esc(dog.get("chip_nr")) or "–"}</div></div>
+        <div class="meta-item"><div class="label">Besitzer</div><div class="value">{esc(owner["name"]) if owner else "–"}</div></div>
+      </div>
+    </div>
+  </div>
+
+  <div class="body">
+    <button class="print-btn no-print" onclick="window.print()">🖨 Drucken / Als PDF speichern</button>
+
+    <div class="section">
+      <h2>Impfungen</h2>
+      <table>
+        <thead><tr><th>Impfung</th><th>Datum</th><th>Nächste Fälligkeit</th><th>Charge</th><th>Tierarzt</th></tr></thead>
+        <tbody>{health_rows_html(impfungen, ["bezeichnung","datum","naechstes","charge_nr","tierarzt_name"])}</tbody>
+      </table>
+    </div>
+
+    <div class="section">
+      <h2>Aktive Medikamente</h2>
+      <table>
+        <thead><tr><th>Medikament</th><th>Seit</th><th>Dosierung</th><th>Häufigkeit</th></tr></thead>
+        <tbody>{health_rows_html(medis, ["bezeichnung","datum","dosierung","haeufigkeit"])}</tbody>
+      </table>
+    </div>
+
+    <div class="section">
+      <h2>Allergien &amp; Unverträglichkeiten</h2>
+      <table>
+        <thead><tr><th>Allergen</th><th>Schweregrad</th><th>Reaktion</th><th>Seit</th></tr></thead>
+        <tbody>{health_rows_html(allergien, ["bezeichnung","schweregrad","reaktion","datum"])}</tbody>
+      </table>
+    </div>
+
+    <div class="section">
+      <h2>Tierärzte</h2>
+      {vets_html}
+    </div>
+  </div>
+  <div class="footer">Erstellt mit BAN YARO · banyaro.app · {fmt_date(__import__("datetime").date.today().isoformat())}</div>
+</div>
+</body>
+</html>"""
+    return HTMLResponse(html)
+
+
 # SPA Fallback — ALLE nicht-API-Routen gehen zur index.html
 @app.get("/{full_path:path}")
 async def spa_fallback(full_path: str):