docs: v0.90.0 REPORT + CONTEXT + REUSE (guest RAM resize R-24 + fast-tick R-28; Phase-0 proof; deploy verified both hosts; floor = operator GO)

REUSE.md

@@ -74,6 +74,7 @@
 | `EnsureLeaf` | internal/localapi/cert.go | `EnsureLeaf(certPath, keyPath, host) (cert, fingerprint, generated, err)` | pinned self-signed leaf | `generated=true` invalidates every issued bootstrap pin — log LOUD (B.1) |
 | `Server.RecoverStaleLockedGuests` | internal/localapi/stalelock.go | `RecoverStaleLockedGuests(ctx)` | startup stale vzdump-lock heal (F2-b) | Clears ONLY `backup`/`snapshot-delete`, only when no vzdump in-flight; A1 RESOLVED (v0.62.0): scan is pool-intersected (`ListLXC` ∩ `Client.Pool`), fail-safe skip on pool-read failure |
 | `ControllerSwapper.Swap` + `ValidControllerImage` | internal/localapi/controllerswap.go | `Swap(ctx, vmid, target) *ControllerSwapState` | agent-owned controller image swap + rollback | Strict image regex (repo + 3-part semver); state file written BEFORE swap; no-healthcheck images need `verifyDwell` |
+| `MemoryOps` + `Server.readMemoryBounds` | internal/localapi/guestmemory.go | `readMemoryBounds(ctx, vmid) (memoryBounds, err)` | guest RAM resize (v0.90.0, R-24): GET/POST /guest/memory | NEW narrow seam (never extend `GuestAPI` — it breaks every fake); the AGENT is the boundary — bounds recomputed FRESH per request (min 2048 / max host_total−2048 / shrink floor max(2048, usage+512)); §8 UNITS TRAP (config `memory`=MB, status/node=bytes); verify maxmem==target after `SetConfig` before claiming success; SetConfig NEVER called on a refusal path |
 
 ### Proxmox client / hub / PBS / provisioning
 
@@ -95,6 +96,8 @@
 | localapi escrow ceremony job | internal/localapi/escrow_ceremony.go | `POST /escrow/ceremony` + status + ONE-SHOT claim + preflight | the wizard's agent half | R lives ONLY in `Server.escrowR` (NEVER the job struct — snapshots must be structurally R-free); zeroed on claim/supersede/10-min TTL (`unclaimed_void`); in-memory BY DESIGN (restart loses R safely; re-run supersedes); subprocess stdout is SECRET-BEARING → parsed then zeroed, never logged |
 | `poke.Listener` + `poke.Port` | internal/poke/poke.go | `NewListener(resolve, trigger, port, logger)`; `poke.Port = 51822` | agent-plane immediate-sync (Direction-2a, v0.89.0) | Binds a contentless UDP socket EXCLUSIVELY to the box's WG /32 (`wgtunnel.LoadAssignedAddr`), fires the hub-loop out-of-band trigger. **Port 51822 is a SHARED cross-repo contract** — the hub poke sender + the ep0 `felhom-poke` forced-command target the SAME number; change one → change all three. Contentless (payload ignored), leading-edge debounced (`DebounceWindow`), WG-confined (kernel EKEYREJECTED refuses non-peer /32s). Wired only when `wg_tunnel.enabled` |
 | `wgtunnel.LoadAssignedAddr` | internal/wgtunnel/manager.go | `LoadAssignedAddr(stateDir) (netip.Addr, bool)` | the box's own WG /32 without a Manager | Reads `registered.json`; ok=false until registered; strips the /32 → bare addr (the poke bind target) |
+| `fasttick.Loop` + `fasttick.SourceFunc` | internal/fasttick/fasttick.go | `New(out chan<- struct{}, interval, logger, sources...)`; `Source.Unconverged() (bool, reason)` | agent-plane immediacy SECONDARY (v0.90.0, R-28): pulse the SAME out-of-band trigger every 30 s while ANY source is unconverged, self-disarm on convergence | STATE-BASED (no timer, nothing to journal). Every source MUST be a CACHED read (no exec/network per tick) — `desiredProvider.Generation()`, `reconcile.Engine.LastResult()` (Planned−Pending>0), `pbsdrLoop.PBSDRStatus().State=="waiting_secret"` ONLY, `wgtunnel.Manager.TunnelConvergence()`. The LOUD pbsdr states + destructive `pending_signature` are DELIBERATELY EXCLUDED (a stuck-loud box must not hammer). Pulses the cap-1 channel non-blocking (coalesces with poke/watchdog); NEVER touch `MinPollSeconds`/`clampInterval`/the ticker |
+| `wgtunnel.Manager.TunnelConvergence` / `reconcile.Engine.LastResult` | internal/wgtunnel/manager.go, internal/reconcile/engine.go | `TunnelConvergence() (desired, operational bool)`; `LastResult() (Result, bool)` | cached convergence snapshots for the fast-tick | TunnelConvergence is refreshed at the END of every `Apply` (its own cadence) so the fast-tick never execs `wg`/`systemctl`; LastResult is mutex-recorded per `reconcileOnce`, ok=false until the first pass |
 
 ## 2. Canonical patterns (copy structure from THE named file)