feat: complete Agent Context API Phase 2 & 3 (Write/Create/Management)

- Implement write operations (complete, uncomplete, update due date, update task)
- Implement create operations (create task, add shopping item)
- Add Trusted Agents management UI in Settings with revocation support
- Fix SQLite timestamp scanning bug for completed tasks
- Add comprehensive unit tests for all new agent endpoints
- Update worklog and feature documentation

2 files changed, 50 insertions, 24 deletions

diff --git a/web/templates/index.html b/web/templates/index.html
index aabe7ff..465e612 100644
--- a/web/templates/index.html
+++ b/web/templates/index.html
@@ -60,43 +60,31 @@
                     hx-get="/tabs/timeline"
                     hx-target="#tab-content"
                     hx-push-url="?tab=timeline"
-                    onclick="setActiveTab(this)">
-                    🗓️ Timeline
-                </button>
-                <button
-                    class="tab-button {{if eq .ActiveTab "tasks"}}tab-button-active{{end}}"
-                    hx-get="/tabs/tasks"
-                    hx-target="#tab-content"
-                    hx-push-url="?tab=tasks"
-                    onclick="setActiveTab(this)">
-                    ✓ Tasks
+                    onclick="setActiveTab(this)"
+                    title="Timeline">
+                    <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 7V3m8 4V3m-9 8h10M5 21h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v12a2 2 0 002 2z"/></svg>
                 </button>
                 <button
                     class="tab-button {{if eq .ActiveTab "shopping"}}tab-button-active{{end}}"
                     hx-get="/tabs/shopping"
                     hx-target="#tab-content"
                     hx-push-url="?tab=shopping"
-                    onclick="setActiveTab(this)">
-                    🛒 Shopping
-                </button>
-                <button
-                    class="tab-button {{if eq .ActiveTab "meals"}}tab-button-active{{end}}"
-                    hx-get="/tabs/meals"
-                    hx-target="#tab-content"
-                    hx-push-url="?tab=meals"
-                    onclick="setActiveTab(this)">
-                    🍽️ Meals
+                    onclick="setActiveTab(this)"
+                    title="Shopping">
+                    <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 3h2l.4 2M7 13h10l4-8H5.4M7 13L5.4 5M7 13l-2.293 2.293c-.63.63-.184 1.707.707 1.707H17m0 0a2 2 0 100 4 2 2 0 000-4zm-8 2a2 2 0 11-4 0 2 2 0 014 0z"/></svg>
                 </button>
                 <button
                     class="tab-button {{if eq .ActiveTab "planning"}}tab-button-active{{end}}"
                     hx-get="/tabs/planning"
                     hx-target="#tab-content"
                     hx-push-url="?tab=planning"
-                    onclick="setActiveTab(this)">
-                    📋 Planning
+                    onclick="setActiveTab(this)"
+                    title="Planning">
+                    <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4"/></svg>
                 </button>
-                <a href="/conditions" class="tab-button">
-                    🌋 Conditions
+                <a href="/conditions" class="tab-button" title="Conditions">🌋</a>
+                <a href="/claudomator/" class="tab-button" title="Claudomator">
+                    <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 10V3L4 14h7v7l9-11h-7z"/></svg>
                 </a>
             </nav>
         </div>
diff --git a/web/templates/settings.html b/web/templates/settings.html
index ca1d268..ef969ee 100644
--- a/web/templates/settings.html
+++ b/web/templates/settings.html
@@ -167,6 +167,44 @@
         </script>
         {{end}}
 
+        <!-- Trusted Agents Section -->
+        <section class="mb-12">
+            <h2 class="text-xl font-medium text-white mb-6 pb-2 border-b border-white/10">Trusted Agents</h2>
+            <div class="grid gap-4" id="agents-list">
+                {{if .Agents}}
+                    {{range .Agents}}
+                    <div class="card flex items-center gap-4" id="agent-{{.AgentID}}">
+                        <div class="flex-1">
+                            <div class="flex items-center gap-2">
+                                <strong class="text-white">{{.Name}}</strong>
+                                {{if not .Trusted}}<span class="text-[10px] bg-red-950 text-red-400 px-2 py-0.5 rounded border border-red-900/50 uppercase tracking-wider">Revoked</span>{{end}}
+                            </div>
+                            <div class="text-xs font-mono text-slate-500 mt-0.5">{{.AgentID}}</div>
+                            <div class="text-[10px] text-slate-400 mt-2 uppercase tracking-widest font-medium">
+                                Last seen: {{if .LastSeen}}{{.LastSeen.Format "Jan 02, 15:04"}}{{else}}Never{{end}}
+                            </div>
+                        </div>
+                        <div class="flex items-center gap-4">
+                            {{if .Trusted}}
+                            <button class="text-xs text-red-400 hover:text-red-300 transition-colors bg-red-950/30 hover:bg-red-950/50 px-3 py-1.5 rounded-lg border border-red-900/30"
+                                    hx-delete="/settings/agents/{{.AgentID}}"
+                                    hx-target="#agent-{{.AgentID}}"
+                                    hx-swap="outerHTML"
+                                    hx-confirm="Revoke access for agent '{{.Name}}'?">
+                                Revoke Access
+                            </button>
+                            {{else}}
+                            <div class="text-xs text-slate-500 italic">Access Revoked</div>
+                            {{end}}
+                        </div>
+                    </div>
+                    {{end}}
+                {{else}}
+                    <div class="card text-center text-slate-500 py-10">No agents have requested access yet.</div>
+                {{end}}
+            </div>
+        </section>
+
         <!-- Data Sources Section -->
         <section class="mb-12">
             <div class="flex flex-wrap items-center justify-between gap-4 mb-6 pb-2 border-b border-white/10">