feat(iac): scaffold orca-platform layout (M1.1)

Lands the per-VM × per-service manifest tree, per-env overlays, VM specs
for SysEleven provisioning, DNS zone placeholder, plan/apply/validate
scripts, and a Makefile.

Structure (per INFRASTRUCTURE.md §2 + IMPLEMENTATION_PLAN.md M1.1):
- manifests/{vm-edge,vm-control,vm-data,stage}/<service>.toml — 35 stubs
- overlays/{dev,stage,prod}/overlay.toml — env-selection rules
- vms/{vm-edge,vm-control,vm-data,stage}.toml — OpenStack flavor/IP/firewall
- dns/yourplatform.com.zone.template — PowerDNS zone (body lands in M0.3)
- cluster.toml.tmpl — cluster-level config rendered per env
- scripts/validate.sh — TOML parse + structural sanity
- scripts/plan.sh — merge manifests + overlay → .orca-out/<env>/
- scripts/apply.sh — push to Orca controller (no-op until M1.2)
- Makefile — validate / plan / apply / diff / clean

Each manifest header names the milestone that finalises its real values;
images today are 'placeholder' for services that need their own repo to
exist first. make validate stays green; apply gates on ORCA_API_URL.

CI workflow swapped from the broken 'orca validate' to 'make validate',
which calls a Python TOML parser plus structural checks (placement.node
matches vm dir, resources.memory present, no mis-nested keys).

Refs: M1.1

manifests/vm-edge/gitea.toml

@@ -0,0 +1,25 @@
+# gitea stub — full config lands in M3.x.
+# Host: vm-edge. Resource budget per INFRASTRUCTURE.md §6 co-tenant notes.
+
+[[service]]
+name = "gitea"
+image = "gitea/gitea:1.22"
+port = 3000
+domain = "git.yourplatform.com"
+
+[service.placement]
+node = "vm-edge"
+
+[service.resources]
+memory = "512Mi"
+cpu = 0.5
+
+[service.volume]
+path = "/data"
+
+[service.env]
+USER_UID = "1000"
+USER_GID = "1000"
+GITEA__database__DB_TYPE = "sqlite3"
+GITEA__database__PATH = "/data/gitea/gitea.db"
+GITEA__server__ROOT_URL = "https://git.yourplatform.com"

manifests/vm-edge/infisical.toml

@@ -0,0 +1,22 @@
+# infisical stub — full config lands in M3.1.
+# Host: vm-edge. Resource budget per INFRASTRUCTURE.md §6 co-tenant notes.
+
+[[service]]
+name = "infisical"
+image = "infisical/infisical:latest"
+port = 8080
+depends_on = ["pg-infisical", "redis-infisical"]
+
+[service.placement]
+node = "vm-edge"
+
+[service.resources]
+memory = "512Mi"
+cpu = 0.5
+
+[service.env]
+DB_CONNECTION_URI = "${secrets.INFISICAL_DB_URI}"
+REDIS_URL = "redis://redis-infisical:6379"
+ENCRYPTION_KEY = "${secrets.INFISICAL_ENCRYPTION_KEY}"
+AUTH_SECRET = "${secrets.INFISICAL_AUTH_SECRET}"
+SITE_URL = "https://infisical.yourplatform.com"

manifests/vm-edge/keycloak.toml

@@ -0,0 +1,25 @@
+# keycloak stub — full config lands in M2.1.
+# Host: vm-edge. Resource budget per INFRASTRUCTURE.md §6 co-tenant notes.
+# Bootstrap exception per §8 rule 3: KC_DB_URL lives in Orca env, not Infisical (Infisical runs on same VM).
+
+[[service]]
+name = "keycloak"
+image = "quay.io/keycloak/keycloak:26.0"
+port = 8443
+domain = "auth.yourplatform.com"
+depends_on = ["pg-keycloak"]
+
+[service.placement]
+node = "vm-edge"
+
+[service.resources]
+memory = "2Gi"
+cpu = 1.0
+
+[service.env]
+KC_DB = "postgres"
+KC_DB_URL = "${secrets.KC_DB_URL}"
+KC_HOSTNAME = "auth.yourplatform.com"
+KC_PROXY_HEADERS = "xforwarded"
+KC_HEALTH_ENABLED = "true"
+JAVA_OPTS_APPEND = "-Xms1g -Xmx1500m"

manifests/vm-edge/orca-proxy.toml

@@ -0,0 +1,15 @@
+# orca-proxy stub — full config lands in M1.2/M0.3.
+# Host: vm-edge. Resource budget per INFRASTRUCTURE.md §6 co-tenant notes.
+# Wildcard TLS terminator; routing rules land with M0.3.
+
+[[service]]
+name = "orca-proxy"
+image = "orca-managed/orca-proxy:placeholder"
+port = 443
+
+[service.placement]
+node = "vm-edge"
+
+[service.resources]
+memory = "256Mi"
+cpu = 0.5

manifests/vm-edge/pg-infisical.toml

@@ -0,0 +1,22 @@
+# pg-infisical stub — full config lands in M3.1.
+# Host: vm-edge. Resource budget per INFRASTRUCTURE.md §6 co-tenant notes.
+
+[[service]]
+name = "pg-infisical"
+image = "postgres:16-alpine"
+port = 5432
+
+[service.placement]
+node = "vm-edge"
+
+[service.resources]
+memory = "256Mi"
+cpu = 0.25
+
+[service.volume]
+path = "/var/lib/postgresql/data"
+
+[service.env]
+POSTGRES_DB = "infisical"
+POSTGRES_USER = "infisical"
+POSTGRES_PASSWORD = "${secrets.PG_INFISICAL_PASSWORD}"

manifests/vm-edge/pg-keycloak.toml

@@ -0,0 +1,22 @@
+# pg-keycloak stub — full config lands in M2.1.
+# Host: vm-edge. Resource budget per INFRASTRUCTURE.md §6 co-tenant notes.
+
+[[service]]
+name = "pg-keycloak"
+image = "postgres:16-alpine"
+port = 5432
+
+[service.placement]
+node = "vm-edge"
+
+[service.resources]
+memory = "512Mi"
+cpu = 0.5
+
+[service.volume]
+path = "/var/lib/postgresql/data"
+
+[service.env]
+POSTGRES_DB = "keycloak"
+POSTGRES_USER = "keycloak"
+POSTGRES_PASSWORD = "${secrets.PG_KEYCLOAK_PASSWORD}"

manifests/vm-edge/powerdns-auth.toml

@@ -0,0 +1,15 @@
+# powerdns-auth stub — full config lands in M0.3.
+# Host: vm-edge. Resource budget per INFRASTRUCTURE.md §6 co-tenant notes.
+
+[[service]]
+name = "powerdns-auth"
+image = "powerdns/pdns-auth:4.9"
+port = 53
+extra_ports = ["53:53/udp", "53:53/tcp"]
+
+[service.placement]
+node = "vm-edge"
+
+[service.resources]
+memory = "256Mi"
+cpu = 0.25

manifests/vm-edge/redis-infisical.toml

@@ -0,0 +1,15 @@
+# redis-infisical stub — full config lands in M3.1.
+# Host: vm-edge. Resource budget per INFRASTRUCTURE.md §6 co-tenant notes.
+# Ephemeral cache; no volume.
+
+[[service]]
+name = "redis-infisical"
+image = "redis:7-alpine"
+port = 6379
+
+[service.placement]
+node = "vm-edge"
+
+[service.resources]
+memory = "128Mi"
+cpu = 0.1