fix: redeploy playbook paths, tags, and idempotency

- Fix snapshot_dir: /srv/solana/snapshots → /srv/kind/solana/snapshots
  (kind node reads from the bind mount, not the zvol mount directly)
- Fix kind-internal paths: /mnt/solana/... → /mnt/validator-... to match
  actual PV hostPath layout (individual mounts, not unified)
- Add 'scale-up' tag to "Scale validator to 1" task for partial recovery
  (--tags snapshot,scale-up,verify resumes without re-running deploy)
- Make 'Start deployment' idempotent: failed_when: false + follow-up
  check so existing deployment doesn't fail the play

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

playbooks/biscayne-redeploy.yml

@@ -11,7 +11,7 @@
 #   3. [deploy]    laconic-so deployment start, then immediately scale to 0
 #   4. [snapshot]  Download snapshot via aria2c to host bind mount
 #   5. [snapshot]  Verify snapshot visible inside kind node
-#   6. [deploy]    Scale validator back to 1
+#   6. [deploy,scale-up] Scale validator back to 1
 #   7. [verify]    Wait for pod Running, check logs + RPC health
 #
 # The validator cannot run during snapshot download — it would lock/use the
@@ -38,6 +38,10 @@
 #   ansible-playbook -i biscayne.vaasl.io, playbooks/biscayne-redeploy.yml \
 #     --tags snapshot
 #
+#   # Resume after partial failure (download snapshot, scale up, verify)
+#   ansible-playbook -i biscayne.vaasl.io, playbooks/biscayne-redeploy.yml \
+#     --tags snapshot,scale-up,verify
+#
 - name: Redeploy agave validator on biscayne
   hosts: all
   gather_facts: false
@@ -51,7 +55,7 @@
     kind_cluster: laconic-70ce4c4b47e23b85
     k8s_namespace: "laconic-{{ kind_cluster }}"
     deployment_name: "{{ kind_cluster }}-deployment"
-    snapshot_dir: /srv/solana/snapshots
+    snapshot_dir: /srv/kind/solana/snapshots
     ledger_dir: /srv/solana/ledger
     accounts_dir: /srv/solana/ramdisk/accounts
     ramdisk_mount: /srv/solana/ramdisk
@@ -185,7 +189,7 @@
         cmd: >
           set -o pipefail &&
           docker exec {{ kind_cluster }}-control-plane
-          df -T /mnt/solana/ramdisk 2>/dev/null | grep -q xfs
+          df -T /mnt/validator-accounts 2>/dev/null | grep -q xfs
         executable: /bin/bash
       register: kind_ramdisk_check
       failed_when: kind_ramdisk_check.rc != 0
@@ -221,10 +225,31 @@
 
     - name: Start deployment (creates kind cluster + deploys pod)
       ansible.builtin.command: "{{ laconic_so }} deployment --dir {{ deployment_dir }} start"
-      changed_when: true
+      register: deploy_start
+      changed_when: deploy_start.rc == 0
+      failed_when: false
       timeout: 1200
       tags: [deploy]
 
+    - name: Verify deployment started or already exists
+      ansible.builtin.command: >
+        kubectl get deployment {{ deployment_name }}
+        -n {{ k8s_namespace }}
+        -o jsonpath='{.metadata.name}'
+      register: deploy_verify
+      changed_when: false
+      failed_when: deploy_verify.rc != 0
+      when: deploy_start.rc != 0
+      tags: [deploy]
+
+    - name: Show deployment start warning
+      ansible.builtin.debug:
+        msg: >-
+          laconic-so deployment start returned rc={{ deploy_start.rc }}
+          but deployment exists — continuing (idempotent).
+      when: deploy_start.rc != 0 and (deploy_verify.rc | default(1)) == 0
+      tags: [deploy]
+
     - name: Wait for deployment to exist
       ansible.builtin.command: >
         kubectl get deployment {{ deployment_name }}
@@ -275,7 +300,7 @@
     - name: Verify kind node mounts
       ansible.builtin.command: >
         docker exec {{ kind_cluster }}-control-plane
-        ls /mnt/solana/snapshots/
+        ls /mnt/validator-snapshots/
       register: kind_mount_check
       changed_when: false
       tags: [snapshot]
@@ -301,7 +326,7 @@
       ansible.builtin.shell: >
         set -o pipefail &&
         docker exec {{ kind_cluster }}-control-plane
-        find /mnt/solana/snapshots/ -name '*.tar.*' -maxdepth 1 | head -5
+        find /mnt/validator-snapshots/ -name '*.tar.*' -maxdepth 1 | head -5
       register: kind_snapshot_check
       failed_when: kind_snapshot_check.stdout == ""
       changed_when: false
@@ -320,7 +345,7 @@
         kubectl scale deployment {{ deployment_name }}
         -n {{ k8s_namespace }} --replicas=1
       changed_when: true
-      tags: [deploy]
+      tags: [deploy, scale-up]
 
     # ---- verify: confirm validator is running --------------------------------
     - name: Wait for pod to be running
@@ -334,10 +359,17 @@
       changed_when: false
       tags: [verify]
 
-    - name: Verify unified mount inside kind node
+    - name: Verify PV mounts inside kind node
-      ansible.builtin.command: "docker exec {{ kind_cluster }}-control-plane ls /mnt/solana/"
+      ansible.builtin.shell:
+        cmd: >
+          set -o pipefail &&
+          docker exec {{ kind_cluster }}-control-plane
+          df -T /mnt/validator-ledger /mnt/validator-accounts
+          /mnt/validator-snapshots /mnt/validator-log 2>&1
+        executable: /bin/bash
       register: mount_check
       changed_when: false
+      failed_when: false
       tags: [verify]
 
     - name: Show mount contents