Add authentication improvements and search functionality

- Implement anonymous access control with ALLOW_ANONYMOUS_ACCESS env var
- Add complete password reset workflow with token-based validation
- Add username recovery functionality for better UX
- Implement full-text search API with relevance scoring and highlighting
- Add Docker compatibility improvements with permission handling and fallback storage
- Add quick stats API for real-time dashboard updates
- Improve security with proper token expiration and input validation
- Add search result pagination and navigation
- Enhance error handling and logging throughout the application

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

templates/forgot_password.html

@@ -0,0 +1,79 @@
+{% extends "base.html" %}
+
+{% block title %}Reset Password - BalanceBoard{% endblock %}
+
+{% block content %}
+<div class="auth-container">
+    <div class="auth-card">
+        <div class="auth-logo">
+            <img src="{{ url_for('serve_logo') }}" alt="BalanceBoard Logo">
+            <h1><span class="balance">balance</span>Board</h1>
+            <p style="color: var(--text-secondary); margin-top: 8px;">Reset your password</p>
+        </div>
+
+        {% with messages = get_flashed_messages(with_categories=true) %}
+            {% if messages %}
+                <div class="flash-messages">
+                    {% for category, message in messages %}
+                        <div class="flash-message {{ category }}">{{ message }}</div>
+                    {% endfor %}
+                </div>
+            {% endif %}
+        {% endwith %}
+
+        <form method="POST" class="auth-form">
+            <div class="form-group">
+                <label for="email">Email Address</label>
+                <input type="email" id="email" name="email" required
+                       placeholder="Enter your registered email address"
+                       value="{{ request.form.email or '' }}">
+                <small class="form-help">
+                    We'll send you instructions to reset your password.
+                </small>
+            </div>
+
+            <button type="submit" class="btn btn-primary btn-block">
+                Send Reset Instructions
+            </button>
+        </form>
+
+        <div class="auth-footer">
+            <p>Remember your password? <a href="{{ url_for('login') }}">Back to login</a></p>
+        </div>
+    </div>
+</div>
+
+<style>
+.form-help {
+    display: block;
+    margin-top: 4px;
+    font-size: 0.875rem;
+    color: var(--text-secondary);
+}
+
+.btn {
+    padding: 12px 24px;
+    border: none;
+    border-radius: 8px;
+    font-size: 1rem;
+    font-weight: 500;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+.btn-primary {
+    background: var(--primary-color, #4db6ac);
+    color: white;
+}
+
+.btn-primary:hover {
+    background: var(--primary-dark, #26a69a);
+    transform: translateY(-1px);
+}
+
+.btn-block {
+    width: 100%;
+    margin-top: 16px;
+}
+</style>
+{% endblock %}