feat: v1.0.0 — UX polish, security hardening, code quality

UI/UX:
- Bill detail page tab UI (Analysis / Timeline / Votes / Notes)
- Topic tag pills on bill detail and listing pages — filtered to known
  topics, clickable, properly labelled via shared lib/topics.ts
- Notes panel always-open in Notes tab; sign-in prompt for guests
- Collapsible sidebar with icon-only mode and localStorage persistence
- Bills page defaults to has-text filter enabled
- Follow mode dropdown transparency fix
- Favicon (Landmark icon, blue background)

Security:
- Fernet encryption for ntfy passwords at rest (app/core/crypto.py)
- Separate ENCRYPTION_SECRET_KEY env var; falls back to JWT derivation
- ntfy_password no longer returned in GET response — replaced with
  ntfy_password_set: bool; NotificationSettingsUpdate type for writes
- JWT_SECRET_KEY fail-fast on startup if using default placeholder
- get_optional_user catches (JWTError, ValueError) only, not Exception

Bug fixes & code quality:
- Dashboard N+1 topic query replaced with single OR query
- notification_utils.py topic follower N+1 replaced with batch query
- Note query in bill detail page gated on token (enabled: !!token)
- search.py max_length=500 guard against oversized queries
- CollectionCreate.validate_name wired up with @field_validator
- LLM_RATE_LIMIT_RPM default raised from 10 to 50

Authored by: Jack Levy

frontend/components/bills/AIBriefCard.tsx

@@ -1,7 +1,7 @@
 "use client";
 
 import { useState } from "react";
-import { AlertTriangle, CheckCircle, Clock, Cpu, ExternalLink, Tag } from "lucide-react";
+import { AlertTriangle, CheckCircle, Clock, Cpu, ExternalLink } from "lucide-react";
 import { BriefSchema, CitedPoint } from "@/lib/types";
 import { formatDate } from "@/lib/utils";
 
@@ -30,28 +30,32 @@ function CitedItem({ point, icon, govinfo_url, openKey, activeKey, setActiveKey
     <li className="text-sm">
       <div className="flex items-start gap-2">
         <span className="mt-0.5 shrink-0">{icon}</span>
-        <span className="flex-1">{cited ? point.text : point}</span>
-        {cited && point.label === "inference" && (
-          <span
-            title="This point is an analytical interpretation, not a literal statement from the bill text"
-            className="shrink-0 text-[10px] px-1.5 py-0.5 rounded border border-border text-muted-foreground font-sans leading-none"
-          >
-            Inferred
-          </span>
-        )}
-        {cited && (
-          <button
-            onClick={() => setActiveKey(isOpen ? null : openKey)}
-            title={isOpen ? "Hide source" : "View source"}
-            className={`shrink-0 text-xs px-1.5 py-0.5 rounded font-mono transition-colors ${
-              isOpen
-                ? "bg-primary text-primary-foreground"
-                : "bg-muted text-muted-foreground hover:bg-accent hover:text-foreground"
-            }`}
-          >
-            § {point.citation}
-          </button>
-        )}
+        <div className="flex-1 min-w-0 space-y-1">
+          <div className="flex items-start gap-2">
+            <span className="flex-1">{cited ? point.text : point}</span>
+            {cited && point.label === "inference" && (
+              <span
+                title="This point is an analytical interpretation, not a literal statement from the bill text"
+                className="shrink-0 text-[10px] px-1.5 py-0.5 rounded border border-border text-muted-foreground font-sans leading-none mt-0.5"
+              >
+                Inferred
+              </span>
+            )}
+          </div>
+          {cited && (
+            <button
+              onClick={() => setActiveKey(isOpen ? null : openKey)}
+              title={isOpen ? "Hide source" : "View source"}
+              className={`text-left text-xs px-1.5 py-0.5 rounded font-mono leading-snug transition-colors ${
+                isOpen
+                  ? "bg-primary text-primary-foreground"
+                  : "bg-muted text-muted-foreground hover:bg-accent hover:text-foreground"
+              }`}
+            >
+              § {point.citation}
+            </button>
+          )}
+        </div>
       </div>
       {cited && isOpen && (
         <div className="mt-2 ml-5 rounded-md border border-border bg-muted/40 p-3 space-y-2">
@@ -165,19 +169,6 @@ export function AIBriefCard({ brief }: AIBriefCardProps) {
         </div>
       )}
 
-      {brief.topic_tags && brief.topic_tags.length > 0 && (
-        <div className="flex items-center gap-2 pt-1 border-t border-border flex-wrap">
-          <Tag className="w-3.5 h-3.5 text-muted-foreground shrink-0" />
-          {brief.topic_tags.map((tag) => (
-            <span
-              key={tag}
-              className="text-xs px-2 py-1 bg-accent text-accent-foreground rounded-full"
-            >
-              {tag}
-            </span>
-          ))}
-        </div>
-      )}
     </div>
   );
 }