Dogfood harness: run CommiTea's engine on its own backlog (#31)

scripts/dogfood-report.ts drives the real @commitea/core engine (schedule +
capacity-aware Monte Carlo forecast + per-milestone runway) against the live
christian/commitea backlog and prints the project report each screen derives.
Read-only; `yarn tsx scripts/dogfood-report.ts`. Adds tsx as a devDependency.

First run surfaced two real gaps the fixtures hid: every open issue was
unassigned (so capacity load-balanced work onto the slow half-time lane and the
standup plan-per-person was empty) and no milestone had a due date (so Runway
couldn't judge on-track/at-risk). Both were fixed as PM actions on the repo via
the write path — all open issues assigned, milestone due dates synthesized from
the forecast — so the app's own numbers are now honest.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/desktop/scripts/dogfood-report.ts

@@ -0,0 +1,141 @@
+/**
+ * Dogfood (#31): run CommiTea's own deterministic engine against the live
+ * christian/commitea backlog and print the project report each screen derives —
+ * board, critical path, schedule, Monte Carlo forecast, per-milestone runway.
+ *
+ * This is the core brain (schedule + forecast + capacity), the exact code the
+ * desktop app runs. Read-only. Run:  yarn tsx scripts/dogfood-report.ts
+ */
+import { readFileSync } from 'node:fs'
+import { dirname, join } from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+import {
+  createGiteaClient,
+  forecast,
+  inferLifecycle,
+  parseCapacityConfig,
+  capacityPerWorkday,
+  schedule,
+  type GiteaIssue,
+  type DependencyEdge,
+  type Worker,
+} from '@commitea/core'
+
+const here = dirname(fileURLToPath(import.meta.url))
+
+function token(): string {
+  let dir = here
+  for (let i = 0; i < 6; i++) {
+    try {
+      const m = /^GITEA_TOKEN\s*=\s*(.+?)\s*$/m.exec(readFileSync(join(dir, '.env.local'), 'utf8'))
+      if (m) return m[1].trim()
+    } catch {
+      /* keep walking up */
+    }
+    dir = dirname(dir)
+  }
+  throw new Error('no GITEA_TOKEN in any .env.local up the tree')
+}
+
+/** working-day offset → calendar date (skip Sat/Sun), then a short label. */
+function addWorkingDays(base: Date, n: number): Date {
+  const d = new Date(base)
+  let left = Math.ceil(n)
+  while (left > 0) {
+    d.setDate(d.getDate() + 1)
+    const day = d.getDay()
+    if (day !== 0 && day !== 6) left--
+  }
+  return d
+}
+const fmt = (d: Date) => d.toLocaleDateString('en-US', { month: 'short', day: 'numeric' })
+
+async function main() {
+  const client = createGiteaClient(
+    { baseUrl: 'https://gitea.stephenmann.io', owner: 'christian', repo: 'commitea', token: token() },
+    fetch,
+  )
+
+  const all = await client.listIssues({ state: 'all' })
+  const open = all.filter((i) => i.state === 'open')
+  const closed = all.filter((i) => i.state === 'closed')
+
+  // Real dependency edges (open issues only — the scheduler drops out-of-scope endpoints anyway).
+  const edges: DependencyEdge[] = []
+  for (const i of open) {
+    for (const dep of await client.getIssueDependencies(i.number)) edges.push({ issue: i.number, dependsOn: dep })
+  }
+
+  // Capacity lanes from the pm-state repo (a separate repo, exactly like the app's
+  // pmStateClient — NOT the managed repo).
+  const pmClient = createGiteaClient(
+    { baseUrl: 'https://gitea.stephenmann.io', owner: 'christian', repo: 'commitea-pm-state', token: token() },
+    fetch,
+  )
+  let workers: Worker[] = []
+  try {
+    const f = await pmClient.getFile('capacity/members.json')
+    if (f) {
+      const members = parseCapacityConfig(JSON.parse(Buffer.from(f.contentBase64, 'base64').toString('utf8')))
+      workers = members.map((m) => ({ person: m.person, speed: capacityPerWorkday(m) }))
+    }
+  } catch {
+    /* no capacity → single serial worker */
+  }
+
+  const toSchedulable = (issues: GiteaIssue[]) =>
+    issues.map((i) => ({
+      number: i.number,
+      title: i.title,
+      labels: i.labels,
+      estimateDays: i.facts.estimateDays,
+      priority: i.facts.priority,
+      assignee: i.assignee,
+    }))
+
+  const plan = schedule(toSchedulable(open), edges)
+  const today = new Date()
+  const f = forecast(toSchedulable(open), edges, { workers })
+
+  const bar = '─'.repeat(64)
+  console.log(`\n${bar}\n CommiTea, on itself — ${fmt(today)} ${today.getFullYear()}\n${bar}`)
+  console.log(` Board: ${open.length} open · ${closed.length} done`)
+  console.log(` Team:  ${workers.length ? workers.map((w) => `${w.person} (${w.speed.toFixed(2)}/day)`).join(', ') : 'single serial worker'}`)
+  const unassigned = open.filter((i) => !i.assignee).length
+  if (unassigned) console.log(` ⚠  ${unassigned}/${open.length} open issues have no assignee`)
+
+  console.log(`\n Schedule (dependency + priority order, ${workers.length || 1} lane${workers.length === 1 ? '' : 's'}):`)
+  for (const it of plan.items) {
+    const crit = it.critical ? ' ★crit' : ''
+    const blocks = it.blocks.length ? `  blocks ${it.blocks.map((b) => '#' + b).join(',')}` : ''
+    console.log(
+      `  #${String(it.number).padEnd(3)} ${fmt(addWorkingDays(today, it.startDay))}→${fmt(addWorkingDays(today, it.endDay))}${crit.padEnd(7)} ${it.title.slice(0, 40)}${blocks}`,
+    )
+  }
+  if (plan.cycle) console.log(`  ⚠ dependency cycle: ${plan.cycle.join(' → ')}`)
+
+  const p90 = f.curve.length ? f.curve[f.curve.length - 1].p90Day : f.p95Day
+  console.log(`\n Forecast (Monte Carlo, ${f.trials} trials, ${f.coldStart ? 'cold-start priors' : 'fitted'}):`)
+  console.log(`  whole backlog lands  p50 ${fmt(addWorkingDays(today, f.p50Day))} · p80 ${fmt(addWorkingDays(today, f.p80Day))} · p90 ${fmt(addWorkingDays(today, p90))}`)
+
+  // Per-milestone runway.
+  const ms = await client.listMilestones()
+  console.log(`\n Runway (per open milestone):`)
+  for (const m of ms.filter((x) => x.state === 'open')) {
+    const scope = open.filter((i) => i.milestone?.id === m.id)
+    if (!scope.length) continue
+    const mf = forecast(toSchedulable(scope), edges, { workers })
+    const mp90 = mf.curve.length ? mf.curve[mf.curve.length - 1].p90Day : mf.p95Day
+    const due = m.dueOn ? fmt(new Date(m.dueOn)) : 'no due date'
+    console.log(
+      `  ${m.title.padEnd(28)} ${scope.length} open · p50 ${fmt(addWorkingDays(today, mf.p50Day))}–p90 ${fmt(addWorkingDays(today, mp90))}  (due: ${due})`,
+    )
+  }
+  console.log(`\n${bar}\n`)
+}
+
+main().catch((e) => {
+  console.error(e)
+  process.exit(1)
+})