fix(openapi): complete parity burn-down — 0 ignored entries remaining

Add OpenAPI specs for all 56 previously-ignored API operations:

Methods added to existing paths (15):
- backup (GET, DELETE), agents/sync, cleanup, integrations (PUT, DELETE),
  logs (POST), memory (DELETE), notifications (PUT, DELETE, deliver),
  pipelines/run, spawn, standup, super/provision-jobs/{id}

New paths (41 operations across 28 paths):
- agents/evals, agents/optimize, channels, claude-tasks, gateways/discover,
  gateways/health/history, github/sync, gnap, hermes (+ memory, tasks),
  index, local/agents-doc, local/flight-deck, local/terminal,
  memory/context, memory/graph, memory/health, memory/links, memory/process,
  nodes, projects/{id}/agents, schedule-parse, security-audit, security-scan
  (+ agent, fix), super/os-users, system-monitor, auth/google/disconnect,
  releases/update

Parity ignore list is now empty (was 66 entries at branch start).
Route coverage: 240/241 (only untracked GET /api/frameworks remains).

scripts/api-contract-parity.ignore

@@ -1,59 +1,3 @@
 # API contract parity baseline ignore list
 # One operation per line: METHOD /api/path
 # Keep this list shrinking over time; remove entries when route/spec parity is fixed.
-DELETE /api/backup
-DELETE /api/integrations
-DELETE /api/memory
-DELETE /api/notifications
-DELETE /api/projects/{id}/agents
-GET /api/agents/evals
-GET /api/agents/optimize
-GET /api/agents/sync
-GET /api/backup
-GET /api/channels
-GET /api/claude-tasks
-GET /api/cleanup
-GET /api/gateways/discover
-GET /api/gateways/health/history
-GET /api/github/sync
-GET /api/gnap
-GET /api/hermes
-GET /api/hermes/memory
-GET /api/hermes/tasks
-GET /api/index
-GET /api/local/agents-doc
-GET /api/local/flight-deck
-GET /api/memory/context
-GET /api/memory/graph
-GET /api/memory/health
-GET /api/memory/links
-GET /api/nodes
-GET /api/notifications/deliver
-GET /api/pipelines/run
-GET /api/projects/{id}/agents
-GET /api/schedule-parse
-GET /api/security-audit
-GET /api/security-scan
-GET /api/spawn
-GET /api/super/os-users
-GET /api/system-monitor
-POST /api/agents/evals
-POST /api/auth/google/disconnect
-POST /api/channels
-POST /api/github/sync
-POST /api/gnap
-POST /api/hermes
-POST /api/local/flight-deck
-POST /api/local/terminal
-POST /api/logs
-POST /api/memory/process
-POST /api/nodes
-POST /api/projects/{id}/agents
-POST /api/releases/update
-POST /api/security-scan/agent
-POST /api/security-scan/fix
-POST /api/standup
-POST /api/super/os-users
-POST /api/super/provision-jobs/{id}
-PUT /api/integrations
-PUT /api/notifications