test: add 18 tests for 0.3 features

- 8 tests: --features and --config flags (add, update, idempotent, file verification)
- 3 tests: transitive dependency resolution (auto-resolve chain)
- 4 tests: kappa search (name, substring, repo source, no-match)
- 3 tests: kappa upgrade (detection, version display, dry-run)

Total: 85 → 103 in test-full.sh (30+23+103 = 156 overall)

test-full.sh

@@ -521,6 +521,39 @@ check_fail "remove needs name" \
     "$KAPPA remove" \
     'no package name'
 
+
+# --features and --config flags
+check "add with --features" \
+    "$KAPPA add featpkg --features 'ssl=on,gzip=off'" \
+    'added featpkg'
+
+check "add features present in config" \
+    "grep -c 'ssl = true' $KAPPA_ROOT/system/config.kap" \
+    '1'
+
+check "update existing with --features" \
+    "$KAPPA add featpkg --features 'http2=on'" \
+    'updated featpkg'
+
+check "add with --config" \
+    "$KAPPA add cfgpkg --config 'port=9090,worker=4'" \
+    'added cfgpkg'
+
+check "config values written to file" \
+    "grep 'port = 9090' $KAPPA_ROOT/system/config.kap" \
+    'port = 9090'
+
+check "add with features and config together" \
+    "$KAPPA add combopkg --features 'ssl=on' --config 'host=localhost'" \
+    'added combopkg'
+
+check "features and config both in file" \
+    "grep -c ssl $KAPPA_ROOT/system/config.kap" \
+    '2'
+
+check "add idempotent with no flags" \
+    "$KAPPA add cfgpkg" \
+    'already in packages'
 # ═══════════════════════════════════════════
 echo ""
 echo "=== Install: list and rollback ==="
@@ -670,6 +703,64 @@ check "resolve deptree (c has dep)" \
     "$KAPPA resolve $TMPDIR/deptree-config.kap 2>&1" \
     'dep-c (1 deps)'
 
+# Transitive dependency resolution
+cat > "$KAPPA_ROOT/cache/packages/trans-a.kap" << 'TRANSEOF'
+package "trans-a" {
+    version = "1.0"
+    source  = "a.tar.gz"
+    sha256  = "abc"
+    license = "MIT"
+    build   { echo a }
+    install { echo a }
+}
+TRANSEOF
+cat > "$KAPPA_ROOT/cache/packages/trans-b.kap" << 'TRANSEOF'
+package "trans-b" {
+    version = "1.0"
+    source  = "b.tar.gz"
+    sha256  = "abc"
+    license = "MIT"
+    depends = [{ name = "trans-a" }]
+    build   { echo b }
+    install { echo b }
+}
+TRANSEOF
+cat > "$KAPPA_ROOT/cache/packages/trans-c.kap" << 'TRANSEOF'
+package "trans-c" {
+    version = "1.0"
+    source  = "c.tar.gz"
+    sha256  = "abc"
+    license = "MIT"
+    depends = [{ name = "trans-b" }]
+    build   { echo c }
+    install { echo c }
+}
+TRANSEOF
+
+cat > "$TMPDIR/transitive-config.kap" << 'TRANSEOF'
+system { hostname = "test" }
+packages { trans-c {} }
+services {}
+boot {
+    kernel     = "linux"
+    init       = "s6"
+    root       = "/dev/sda1"
+    bootloader = "limine"
+}
+TRANSEOF
+
+check "transitive deps auto-resolve (only c declared)" \
+    "$KAPPA resolve $TMPDIR/transitive-config.kap 2>&1" \
+    'trans-a (0 deps)'
+
+check "transitive deps include intermediate" \
+    "$KAPPA resolve $TMPDIR/transitive-config.kap 2>&1" \
+    'trans-b (1 deps)'
+
+check "transitive deps resolve root last" \
+    "$KAPPA resolve $TMPDIR/transitive-config.kap 2>&1" \
+    'trans-c (1 deps)'
+
 # ═══════════════════════════════════════════
 echo ""
 echo "=== Build: simple execution ==="
@@ -955,6 +1046,62 @@ check "parse-config with features" \
 
 # ═══════════════════════════════════════════
 echo ""
+
+
+echo ""
+echo "=== Search: cached index queries ==="
+echo ""
+
+mkdir -p "$KAPPA_ROOT/cache/indexes"
+cat > "$KAPPA_ROOT/cache/indexes/test-repo-stable.kap" << 'SRCHEOF'
+index "test-repo/stable" {
+    trans-a { version = "1.0" }
+    trans-b { version = "1.0" }
+    trans-c { version = "1.0" }
+    testpkg { version = "1.0" }
+}
+SRCHEOF
+
+check "search finds package by name" \
+    "$KAPPA search trans-a" \
+    'trans-a'
+
+check "search finds by substring" \
+    "$KAPPA search ans" \
+    'trans-a'
+
+check "search shows repo source" \
+    "$KAPPA search trans-a" \
+    'test-repo/stable'
+
+check "search no match" \
+    "$KAPPA search zzz999" \
+    'no packages matching'
+
+echo ""
+echo "=== Upgrade: version comparison ==="
+echo ""
+
+mkdir -p "$KAPPA_ROOT/db"
+cat > "$KAPPA_ROOT/db/installed" << 'UPGEOF'
+trans-a 0.9 a1b2c3d4e5f6a7b8
+trans-b 0.9 b2c3d4e5f6a7b8c9
+trans-c 1.0 c3d4e5f6a7b8c9d0
+UPGEOF
+
+check "upgrade detects newer versions" \
+    "$KAPPA upgrade 2>&1" \
+    'trans-a'
+
+check "upgrade shows old version" \
+    "$KAPPA upgrade 2>&1" \
+    '0.9'
+
+check "upgrade dry-run does not apply" \
+    "$KAPPA upgrade --dry-run 2>&1" \
+    'run kappa add'
+
+rm -f "$KAPPA_ROOT/db/installed"
 echo "=== Rebuild: dry-run detection ==="
 echo ""