Wire the store, lease table and limiter into crossbar

Implemented-By: OpenCode session (model recorded in docs/implementer-log.md)

cmd/crossbar/main.go

@@ -17,7 +17,10 @@ import (
 	"git.wntrmute.dev/kyle/crossbar/internal/admin"
 	"git.wntrmute.dev/kyle/crossbar/internal/config"
 	"git.wntrmute.dev/kyle/crossbar/internal/health"
+	"git.wntrmute.dev/kyle/crossbar/internal/lease"
+	"git.wntrmute.dev/kyle/crossbar/internal/limiter"
 	"git.wntrmute.dev/kyle/crossbar/internal/proxy"
+	"git.wntrmute.dev/kyle/crossbar/internal/store"
 )
 
 func main() {
@@ -38,6 +41,12 @@ func run() error {
 
 	log := slog.New(slog.NewTextHandler(os.Stderr, nil))
 
+	st, err := store.Open(cfg.DB)
+	if err != nil {
+		return err
+	}
+	defer st.Close()
+
 	baseURLs := make(map[string]string, len(cfg.Hosts))
 	for name, host := range cfg.Hosts {
 		baseURLs[name] = host.BaseURL
@@ -48,9 +57,79 @@ func run() error {
 	defer stop()
 	go table.Run(ctx)
 
+	hosts := proxy.HostView(table, cfg)
+	lim := limiter.New()
+	for name, h := range cfg.Hosts {
+		for model, m := range h.Models {
+			lim.Configure(name, model, m.Parallel, cfg.QueueMax)
+		}
+	}
+
+	leases, err := lease.New(st, hosts, proxy.Chooser(cfg, table, lim), cfg.LeaseIdle.Duration)
+	if err != nil {
+		return err
+	}
+	for name, rt := range cfg.Routes {
+		leases.Candidates(name, rt.Hosts)
+	}
+
 	mux := http.NewServeMux()
-	mux.Handle("/_crossbar/", admin.Handler(cfg, table, nil, nil, nil, nil))
+	mux.Handle("/_crossbar/", admin.Handler(cfg, table, leases, lim, st, hosts))
-	mux.Handle("/", proxy.New(cfg, table, nil, nil, nil, log))
+	mux.Handle("/", proxy.New(cfg, table, leases, lim, st, log))
+
+	// Background maintenance until ctx is done. Errors are logged, never fatal.
+	go func() {
+		ticker := time.NewTicker(time.Minute)
+		defer ticker.Stop()
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-ticker.C:
+				leases.ExpireIdle(time.Now())
+			}
+		}
+	}()
+
+	go func() {
+		ticker := time.NewTicker(time.Hour)
+		defer ticker.Stop()
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-ticker.C:
+				n, err := st.Prune(time.Now(), cfg.Retention.Duration)
+				if err != nil {
+					log.Error("prune", "err", err)
+					continue
+				}
+				log.Info("pruned request rows", "rows", n)
+			}
+		}
+	}()
+
+	go func() {
+		ticker := time.NewTicker(cfg.PollInterval.Duration)
+		defer ticker.Stop()
+		for {
+			select {
+			case <-ctx.Done():
+				return
+			case <-ticker.C:
+				for name, s := range table.All() {
+					if err := st.RecordHostHealth(store.HostHealth{
+						TS:      time.Now(),
+						Host:    name,
+						Healthy: s.Healthy,
+						Loaded:  s.Loaded,
+					}); err != nil {
+						log.Error("record host health", "host", name, "err", err)
+					}
+				}
+			}
+		}
+	}()
 
 	srv := &http.Server{
 		Addr:              cfg.Listen,

docs/implementer-log.md

@@ -5,6 +5,7 @@ owner fills in the Model column. The reviewer adds findings under "Reviews" once
 
 | Task | Date | Status | Gate runs | First gate | Deviations | Notes | Model |
 |---|---|---|---|---|---|---|---|
+| v1/07-main | 2026-09-25 | done | 1 | pass | none | Wired store, limiter and lease table into `cmd/crossbar/main.go`: `store.Open` before the health table, `limiter.Configure` per (host, model) from `cfg.Hosts`, `lease.New` with `proxy.Chooser`, `Candidates` for every route, three background goroutines (idle expiry per minute, prune per hour logging the count, host-health recording per `poll_interval`), and `st.Close` via `defer`. The 3s SIGTERM run exits 0 with `listening`/`shutting down`; the missing-config run exits 1. | ? |
 | v1/06-admin | 2026-09-25 | done | 2 | fail | Split `internal/admin/admin.go` (196 lines) + `admin_ops.go` (366 lines) to stay under 400. Updated `cmd/crossbar/main.go`'s `admin.Handler` call from the committed 2-arg `(cfg, table)` to the task's 6-arg signature, passing the health table for `hosts` and `nil` for the not-yet-wired `leases`/`limiter`/`store`/`drainer` (task 07 wires them); this was a compile fix required for `go vet`/`go test ./...` on `cmd/crossbar` to pass — the full wiring is task 07. | First `make gate` failed on `go vet` (`admin.Handler` called with 2 args in `main.go` after the signature changed); fixed `main.go` and the gate passed on the second run. `admin_test.go` and `example.toml` verified byte-identical to `docs/plans/v1/_files/`; `internal/lease` and `internal/store` left untouched except the already-present `Candidates`/`StatusCounts`. | ? |
 | v1/05-proxy | 2026-09-25 | done | 2 | fail | Split `internal/proxy/proxy.go` (411 lines) into `proxy.go` + `forward.go` by moving `forward`, `newReverseProxy`, `forwardState`, `statusRecorder`, `leaseState`, `ttfbMs` and the `writeError`/`writeRecord` helpers to `forward.go`; the one `recorder_test.go` `proxy.New` call changed to `proxy.New(cfg, h, nil, nil, nil, nil)` per the task; `cmd/crossbar/main.go` passes `nil, nil, nil` for the new `leases`/`lim`/`rec` args (task 06 wires them). | The tee in `tee.go` already read the final SSE chunk's (streamed) and the JSON body's (non-streamed) usage/timings, so `TestAccountingRowsFromUsageAndTimings` passed on the first run — the only gate blocker was `proxy.go` at 411 lines. | ? |
 | v1/04-lease | 2026-09-25 | done | 1 | pass | The given `TestPinAndUnpin` was wrong and replaced by the owner mid-task; the corrected `internal/lease/lease_test.go` is byte-identical to `docs/plans/v1/_files/internal/lease/lease_test.go`. A `fmt.Printf("DEBUG …")` line the prior session left in `event` was removed before the gate. | `Acquire` order (pinned, existing, inherit, choose) with memory rolled back only after a successful save; `Pin` writes a pin event, then the pin row, then deletes other-host leases, so the pin event always precedes the unpin's release event in the log. | ? |