lifecycle: drop manager port special case (#753) — manager hashes into 8100..8999 like every other agent

docs/approvals.md

@@ -343,7 +343,8 @@ Differences from sub-agents:
 - `flake.nix` extends `hyperhive.nixosConfigurations.manager`
   (vs `agent-base`).
 - Container name is `hm1nd` (no `h-` prefix).
-- Fixed web UI port (`MANAGER_PORT = 8000`).
+- Web UI port via `lifecycle::agent_web_port("hm1nd")` — same
+  FNV-1a hash as every other agent (8100..8999 range) since #753.
 - `set_nspawn_flags` adds two extra binds: `/var/lib/hyperhive/agents`
   → `/agents` (RW) so the manager can edit per-agent proposed repos,
   and `/var/lib/hyperhive/applied` → `/applied` (RO) so the manager

docs/conventions.md

@@ -10,8 +10,8 @@ exist because something already went wrong without them.
 - The manager is `hm1nd` (no `h-` prefix, fixed name).
 - `MAX_AGENT_NAME` in `lifecycle.rs` enforces the cap.
 - Per-agent web UI port = `WEB_PORT_BASE + FNV1a(name) % WEB_PORT_RANGE`
-  (8100..8999); manager fixed at 8000; dashboard `cfg.dashboardPort`
-  (default 7000).
+  (8100..8999) for every agent including the manager (#753); dashboard
+  `cfg.dashboardPort` (default 7000).
 
 ## Identity = socket
 

docs/web-ui.md

@@ -1,8 +1,9 @@
 # Web UI
 
 Two web surfaces share the same skeleton: the dashboard (port 7000)
-and the per-agent UIs (manager on :8000, sub-agents on a hashed
-:8100-8999). Both are SPAs — `GET /` returns a static shell,
+and the per-agent UIs (every container — including the manager —
+hashes into :8100-8999 via `lifecycle::agent_web_port`'s FNV-1a,
+since #753). Both are SPAs — `GET /` returns a static shell,
 `/api/state` returns JSON, JS renders. No full-page reloads.
 
 ## Shape (shared by both)