feat: bridge_self bot commands — status, thresholds, reset, health

Adds bot commands for the bridge_self provider so operators can inspect
and manage bridge health from chat: /status, /thresholds, /reset, /health.
Includes Jinja2 templates for both locales, seed data, capability slots,
and a handler that exposes pending deferred backlog plus per-counter
reset. Also adds .claude/skills/ for project-scoped graph-aware skills.

frontend/src/routes/command-template-configs/+page.svelte

@@ -85,7 +85,7 @@
 		return {
 			value: code,
 			label: m.native,
-			desc: i === 0 ? `${code.toUpperCase()} Р’В· ${t('locales.primary')}` : code.toUpperCase(),
+			desc: i === 0 ? `${code.toUpperCase()} · ${t('locales.primary')}` : code.toUpperCase(),
 		};
 	}));
 	$effect(() => {
@@ -144,10 +144,10 @@
 	 * Group command slots by purpose so the form mirrors how notification
 	 * templates are split (event vs scheduled vs settings).
 	 *
-	 *   commandResponses  — primary reply templates (/start, /help, /status, data slots)
-	 *   commandErrors     — fallback messages (rate_limited, no_results)
-	 *   commandDescriptions — desc_* slots: short menu blurbs in Telegram's command picker
-	 *   commandUsage      — usage_* slots: invocation examples shown by /help
+	 *   commandResponses  — primary reply templates (/start, /help, /status, data slots)
+	 *   commandErrors     — fallback messages (rate_limited, no_results)
+	 *   commandDescriptions — desc_* slots: short menu blurbs in Telegram's command picker
+	 *   commandUsage      — usage_* slots: invocation examples shown by /help
 	 */
 	let commandSlotGroups = $derived([
 		{
@@ -548,7 +548,7 @@
 					{#each filteredSlots as slot}
 						<CollapsibleSlot
 							label={slot.name}
-							description="/{slot.name} — {slot.description}"
+							description="/{slot.name} — {slot.description}"
 							expanded={expandedSlots.has(slot.name)}
 							status={getSlotStatus(slot.name)}
 							ontoggle={() => toggleSlot(slot.name)}
@@ -587,7 +587,7 @@
 
 							{#if slotErrors[slot.name]}
 								{#if slotErrorTypes[slot.name] === 'undefined'}
-									<p class="mt-1 text-xs" style="color: var(--color-warning-fg);">вљ  {t('common.undefinedVar')}: {slotErrors[slot.name]}</p>
+									<p class="mt-1 text-xs" style="color: var(--color-warning-fg);">⚠ {t('common.undefinedVar')}: {slotErrors[slot.name]}</p>
 								{:else}
 									<p class="mt-1 text-xs" style="color: var(--color-error-fg);">вњ• {t('common.syntaxError')}: {slotErrors[slot.name]}{slotErrorLines[slot.name] ? ` (${t('common.line')} ${slotErrorLines[slot.name]})` : ''}</p>
 								{/if}