feat: add okr plugin v1.0.0 — OKR guidance for Norwegian public sector

Expert OKR guidance based on Google/Doerr methodology, adapted for
4-month tertial cycles and Norwegian government accountability.

Components:
- 8 commands (skriv, kvalitet, kaskade, sporing, møter, innføring, governance, oppsett)
- 5 agents (kvalitetssjekker, kaskadebygger, fremdriftssporer, møtefasilitator, styringsrådgiver)
- 3 hooks (UserPromptSubmit context injection, PreCompact state preservation, Stop reminder)
- 15 reference files covering methodology, governance, meetings, antipatterns
- Linear MCP integration for OKR tracking

Previously in ktg-privat, now open-sourced.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

plugins/okr/hooks/scripts/inject-okr-context.mjs

@@ -0,0 +1,45 @@
+#!/usr/bin/env node
+
+// inject-okr-context.mjs
+// Event: UserPromptSubmit
+// Purpose: Inject OKR organization context from .claude/okr.local.md when configured.
+// Zero npm dependencies. Target execution: <20ms.
+
+import { readFileSync, existsSync } from 'node:fs';
+import { join } from 'node:path';
+
+const configPath = join(process.cwd(), '.claude', 'okr.local.md');
+
+if (!existsSync(configPath)) {
+  process.exit(0);
+}
+
+try {
+  const content = readFileSync(configPath, 'utf8');
+  const match = content.match(/^---\n([\s\S]*?)\n---/);
+  if (!match) process.exit(0);
+
+  const fm = match[1];
+  const get = (key) => {
+    const m = fm.match(new RegExp(`${key}:\\s*["']?([^"'\\n]+)["']?`));
+    return m ? m[1].trim() : null;
+  };
+
+  const org = get('navn') || get('name');
+  const syklus = get('gjeldende') || get('current_cycle');
+  const sektor = get('sektor') || get('sector');
+  const linear = fm.includes('aktivert: true') || fm.includes('enabled: true');
+
+  if (!org) process.exit(0);
+
+  const parts = [`Organisasjon: ${org}`];
+  if (syklus) parts.push(`Gjeldende syklus: ${syklus}`);
+  if (sektor) parts.push(`Sektor: ${sektor}`);
+  if (linear) parts.push('Linear: aktivert');
+
+  const systemMessage = `OKR-kontekst (fra .claude/okr.local.md): ${parts.join(', ')}.`;
+  process.stdout.write(JSON.stringify({ systemMessage }));
+} catch {
+  // Graceful exit on any error — never block the user
+  process.exit(0);
+}