feat(web,api): add Budget/Roles dashboard -- final phase of the harness redesign (Phase 9b)

2026-07-04T08:50:46+00:00

Two new tabs, matching Phase 9a's conventions: Budget (per-provider spend meters, escalation funnel, spend-over-time) and Roles (version history, draft activation, readable escalation-ladder view) -- the human-facing surface for the token-husbanding value proposition and the Phase 5/8 versioned role-config system. New backend (minimal, additive, matching existing endpoint conventions -- unauthenticated like /api/budget and /api/roles/*): - internal/storage/dashboard.go: QueryEscalationFunnel (executions grouped by escalation_rung + agent, count + cost) and QuerySpendTimeseries (cost per provider bucketed hourly/daily, mirroring QueryDashboardStats' existing bucketing expressions). Documented honestly: rung 0 is not exclusively "resolved locally" -- escalation_rung defaults to 0 uniformly, so non-role-typed executions (which never climb a ladder) land there too, alongside role-typed tasks genuinely resolved at tier 0. A role-only variant would need a join against tasks.config_json with no queryable role column on executions -- intentionally out of scope. - internal/api/dashboard.go: GET /api/escalation-funnel, GET /api/spend-timeseries (both ?window=5h|24h|7d|, default 24h). - internal/storage.ListRoleNames + GET /api/roles: the "which roles exist" gap -- there was no way to discover role names before this, only to list versions for a role you already knew the name of. Chart-form decisions (dataviz skill, invoked before writing chart code): horizontal stacked bar for the escalation funnel (rung order already encodes the funnel shape positionally; color only needed for per-provider segments within each rung); multi-line for spend-over-time; a fixed-order categorical palette from the skill's validated palette.md slots for provider identity (re-validated against this app's dark surface, passing); a separate status (good/warning/critical) palette for budget meters, deliberately distinct from both --state-* and the provider palette. Caught and fixed a real bug during visual QA: converging near-zero end-labels on the spend chart were overlapping (an anti-pattern the skill explicitly flags) -- fixed with a 14px minimum-gap check before direct-labeling an endpoint, leaning on the legend/tooltip otherwise. Verified with a real running server, real seeded data (65 executions across rungs 0-2 with a realistic provider mix, 2 roles with active/draft/retired role_configs versions written directly via internal/storage), and a real headless-browser session (reusing Phase 9a's Chromium/proxy scaffinding): confirmed correct rung totals/percentages, provider legends, a 3-line spend chart, live window-selector re-render, correct active-version highlighting on the role panel, and a real Activate click on a draft version -- verified via both DOM re-render and a direct backend GET that it truly persisted. go build/vet/test -race -count=1 all pass, full suite. node --test web/test/*.mjs: 291/291 passing (16 new). Co-Authored-By: Claude Sonnet 5 Claude-Session: https://claude.ai/code/session_01V1moSNCJRcP6kykA4tyUSs

claudomator.git/internal/api/dashboard_test.go, branch main

feat(web,api): add Budget/Roles dashboard -- final phase of the harness redesign (Phase 9b)