fix(install): revert tree-sitter grammars to devDependencies (#2300 regression) (#2305)

PR #2300 moved 21 tree-sitter grammar packages from devDependencies into
root dependencies, claiming "their .wasm files are loaded at runtime by
parser.ts." That justification is wrong for the root claude-mem npm
package: parser.ts compiles into plugin/scripts/worker-service.cjs, which
runs from the marketplace folder where plugin/package.json already lists
every grammar as a runtime dep. Nothing in dist/npx-cli/ ever loads a
grammar, and resolveGrammarPath() handles missing packages gracefully.

The regression: `npx claude-mem@12.6.1 install` now fetches all 21
grammars at npx time. tree-sitter-swift's postinstall pulls a nested
tree-sitter-cli that downloads a Rust binary from GitHub and hangs the
install. npm ignores the trustedDependencies bun-allowlist, so there's
no way to skip the postinstall scripts on a bare `npx` fetch.

Fix: move grammar packages back to root devDependencies. The marketplace
plugin install (installPluginDependencies → bun install in plugin/) still
works because plugin/package.json keeps them as deps and Bun honors
trustedDependencies: ["tree-sitter-cli"] to skip the harmful postinstalls
on every other grammar.

Keep PR #2300's --legacy-peer-deps + --omit=dev install.ts changes —
those address a separate, valid marketplace ERESOLVE.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

package.json

@@ -118,13 +118,7 @@
   "dependencies": {
     "@anthropic-ai/claude-agent-sdk": "^0.2.119",
     "@clack/prompts": "^1.2.0",
-    "@derekstride/tree-sitter-sql": "^0.3.11",
     "@modelcontextprotocol/sdk": "^1.29.0",
-    "@tree-sitter-grammars/tree-sitter-lua": "^0.4.1",
-    "@tree-sitter-grammars/tree-sitter-markdown": "^0.3.2",
-    "@tree-sitter-grammars/tree-sitter-toml": "^0.7.0",
-    "@tree-sitter-grammars/tree-sitter-yaml": "^0.7.1",
-    "@tree-sitter-grammars/tree-sitter-zig": "^1.1.2",
     "ansi-to-html": "^0.7.2",
     "dompurify": "^3.4.1",
     "express": "^5.2.1",
@@ -133,6 +127,31 @@
     "picocolors": "^1.1.1",
     "react": "^19.2.5",
     "react-dom": "^19.2.5",
+    "yaml": "^2.8.3",
+    "zod": "^4.3.6",
+    "zod-to-json-schema": "^3.25.2"
+  },
+  "devDependencies": {
+    "@derekstride/tree-sitter-sql": "^0.3.11",
+    "@tree-sitter-grammars/tree-sitter-lua": "^0.4.1",
+    "@tree-sitter-grammars/tree-sitter-markdown": "^0.3.2",
+    "@tree-sitter-grammars/tree-sitter-toml": "^0.7.0",
+    "@tree-sitter-grammars/tree-sitter-yaml": "^0.7.1",
+    "@tree-sitter-grammars/tree-sitter-zig": "^1.1.2",
+    "@types/bun": "^1.3.13",
+    "@types/cors": "^2.8.19",
+    "@types/dompurify": "^3.2.0",
+    "@types/express": "^5.0.6",
+    "@types/node": "^25.6.0",
+    "@types/react": "^19.2.14",
+    "@types/react-dom": "^19.2.3",
+    "esbuild": "^0.28.0",
+    "jimp": "^1.6.1",
+    "np": "^11.2.0",
+    "parse5": "^8.0.1",
+    "postcss": "^8.5.13",
+    "remark-mdx": "^3.1.1",
+    "remark-parse": "^11.0.0",
     "tree-sitter-bash": "^0.25.1",
     "tree-sitter-c": "^0.24.1",
     "tree-sitter-cli": "^0.26.8",
@@ -152,25 +171,6 @@
     "tree-sitter-scss": "^1.0.0",
     "tree-sitter-swift": "^0.7.1",
     "tree-sitter-typescript": "^0.23.2",
-    "yaml": "^2.8.3",
-    "zod": "^4.3.6",
-    "zod-to-json-schema": "^3.25.2"
-  },
-  "devDependencies": {
-    "@types/bun": "^1.3.13",
-    "@types/cors": "^2.8.19",
-    "@types/dompurify": "^3.2.0",
-    "@types/express": "^5.0.6",
-    "@types/node": "^25.6.0",
-    "@types/react": "^19.2.14",
-    "@types/react-dom": "^19.2.3",
-    "esbuild": "^0.28.0",
-    "jimp": "^1.6.1",
-    "np": "^11.2.0",
-    "parse5": "^8.0.1",
-    "postcss": "^8.5.13",
-    "remark-mdx": "^3.1.1",
-    "remark-parse": "^11.0.0",
     "ts-prune": "^0.10.3",
     "tsx": "^4.21.0",
     "typescript": "^6.0.3",