claude-cli: pause until reset on session-limit; harden capability-set loader

- On a Claude Code session/usage limit ('resets 7:10pm'), _call_claude_cli now
  pauses IN PLACE until the stated reset time + CLAUDE_CLI_LIMIT_BUFFER_SECONDS
  (default 60s past), then retries — up to CLAUDE_CLI_LIMIT_MAX_WAITS windows.
  Parses 12-hour reset times to their next occurrence; falls back to a fixed
  wait when no time is present. Makes long unattended runs survive reset windows.
- load_library() reports invalid capability-set JSON as a clean SystemExit
  (line number + reason) instead of a traceback; fixed a trailing-comma typo in
  data/capability_sets/dx02.json.
- Docs: USAGE.md + .env.example document the claude-cli provider and its knobs.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

sales-agent/data/capability_sets/dx02.json

@@ -0,0 +1,55 @@
+{
+  "version": "1.0",
+  "lastUpdated": "2026-07-16",
+  "_source": "https://www.broadcom.com/products/software/aiops-observability/operational-observability",
+  "_note": "One-off targeted capability set. Select at runtime: `loop --capability dx02`. Add more sets as data/capability_sets/<name>.json with this same schema.",
+  "capabilities": [
+    {
+      "id": "cap_es_dx_apm",
+      "grouping": "Enterprise Software",
+      "category": "DX — Observability & AIOps",
+      "name": "DX Application Performance Management (DX APM)",
+      "description": "Full-stack application performance monitoring with AI-driven analytics to detect, triage, and resolve performance issues fast.",
+      "businessProblems": [
+        "Application performance incidents hurting customer experience",
+        "Slow root-cause analysis across complex stacks",
+        "Siloed monitoring tools with no end-to-end view"
+      ],
+      "buyingSignals": [
+        "Executive posts about reliability, uptime, or customer experience",
+        "Hiring SRE, observability, or performance engineers",
+        "Mentions of major outage or digital experience initiatives",
+        "Cloud migration increasing monitoring complexity",
+        "public complaints by users about application performance or availability",
+        "Major new mobile application announced",
+        "Mention of costly monitoring tools, specifically DataDog, Dynatrace, AppDynamics"
+      ],
+      "antiSignals": ["Already owns DX APM per CRM", "Standardized on a competing APM/observability vendor"],
+      "targetBuyer": { "titles": ["VP IT Operations", "Head of SRE", "CIO"], "departments": ["IT", "Operations"] },
+      "keywords": ["apm", "dx apm", "observability", "application performance", "monitoring", "sre", "reliability", "root cause", "uptime"]
+    },
+    {
+      "id": "cap_es_dx_aiops",
+      "grouping": "Enterprise Software",
+      "category": "DX — Observability & AIOps",
+      "name": "DX Operational Observability & AIOps",
+      "description": "Unifies metrics, events, logs, and traces with AIOps to reduce noise, predict issues, and automate IT operations.",
+      "businessProblems": [
+        "Alert storms and tool sprawl overwhelming ops teams",
+        "Reactive operations with slow MTTR",
+        "No correlated view across hybrid infrastructure"
+      ],
+      "buyingSignals": [
+        "Executive posts about AIOps, noise reduction, or MTTR",
+        "Hiring observability/AIOps roles",
+        "Mentions of consolidating monitoring tools",
+        "Major incident driving operations modernization"
+      ],
+      "antiSignals": ["Already owns DX OI/AIOps per CRM"],
+      "targetBuyer": { "titles": ["VP IT Operations", "Head of Observability", "CIO"], "departments": ["IT", "Operations"] },
+      "keywords": ["aiops", "observability", "operational intelligence", "mttr", "noise reduction", "events", "logs", "traces", "automation"]
+    }
+  ],
+  "bundleSignals": [],
+  "globalAntiSignals": []
+}