chore(item60): instigate LFS readiness so the fleet keeps reading real data

Atomic with the LFS migration: without this, merging would open a window
where fleet bots read LFS pointer stubs instead of the learning log.

- 3 learning-data workflows (learning-loop, repo-integrity-guard,
  supervised-fleet-scan) checkout with lfs: true. Other workflows left
  untouched (no LFS bandwidth cost on jobs that do not read the data).
- setup.sh: best-effort git lfs install + pull (guarded; warns rather
  than aborting under set -euo pipefail when git-lfs is absent).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: hyperpolymath

.github/workflows/learning-loop.yml

@@ -22,6 +22,8 @@ jobs:
     steps:
       - name: Checkout gitbot-fleet
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v4
+        with:
+          lfs: true  # shared-context/learning/*.jsonl is LFS-tracked (Item 60)
 
       - name: Process pending findings
         run: |

.github/workflows/repo-integrity-guard.yml

@@ -36,6 +36,7 @@ jobs:
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v4
         with:
           fetch-depth: 0
+          lfs: true  # shared-context/learning/*.jsonl is LFS-tracked (Item 60)
 
       - name: Critical files must exist
         run: |

.github/workflows/supervised-fleet-scan.yml

@@ -31,6 +31,8 @@ jobs:
     steps:
       - name: Checkout gitbot-fleet
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v4
+        with:
+          lfs: true  # shared-context/learning/*.jsonl is LFS-tracked (Item 60)
 
       - name: Clone Hypatia scanner
         run: |

setup.sh

@@ -22,6 +22,17 @@ CURRENT_SHELL="$(basename "$SHELL" 2>/dev/null || echo "unknown")"
 echo "Shell: $CURRENT_SHELL"
 echo ""
 
+# Ensure git-LFS: shared-context/learning/*.jsonl is LFS-tracked (Item 60).
+# Without it the fleet's bots read pointer stubs instead of the learning log.
+if command -v git-lfs >/dev/null 2>&1; then
+    git lfs install --local >/dev/null 2>&1 || true
+    git lfs pull >/dev/null 2>&1 || echo "⚠️  'git lfs pull' failed — learning jsonl may be pointer-only"
+else
+    echo "⚠️  git-lfs not installed: shared-context/learning/*.jsonl will be LFS pointers, not data."
+    echo "    Install git-lfs (apt/dnf/brew/pkg), then run: git lfs install && git lfs pull"
+fi
+echo ""
+
 # Check for just
 if ! command -v just >/dev/null 2>&1; then
     echo "just (command runner) is required but not installed."