refactor(core): migrate ConfigPermission.Info to Effect Schema canonical

Follow-up to #23716. Moves ConfigPermission.Info from zod-first (with a
preprocess hack) to Effect Schema canonical using Schema.StructWithRest +
Schema.decodeTo, and deletes the now-unused ZodPreprocess plumbing.

Core change: rule precedence in `Permission.fromConfig` now sorts top-level
keys so wildcard permissions (e.g. `*`, `mcp_*`) come before specific
ones (e.g. `bash`, `edit`). Combined with `findLast` in evaluate(),
this gives the intuitive semantic 'specific tool rules override the `*`
fallback' regardless of the user's JSON key order. This silently fixes the
previously-broken case `{bash: "allow", "*": "deny"}` (which under
the old semantics denied bash because `*` came last).

Once rule precedence no longer depends on JSON insertion order, the
`__originalKeys` + ZodPreprocess hack can go — StructWithRest's natural
canonicalisation is fine because fromConfig sorts anyway.

- src/config/permission.ts: rewrite. InputObject is StructWithRest with known
  permission keys (read/edit/bash/... as Rule, todowrite/webfetch/... as
  Action-only for type narrowing) + Record rest. Schema.decodeTo normalises
  the Action shorthand into { "*": action }. .zod is derived — walker
  already carries the decodeTo transform.
- src/config/config.ts, src/config/agent.ts: reference ConfigPermission.Info
  directly instead of via Schema.Any + ZodOverride. The Effect decoder now
  applies the permission transform at load time.
- src/permission/index.ts: fromConfig sorts wildcards-before-specifics at
  top level. Sub-pattern order inside a tool key is preserved (documented
  `*` first, specifics after).
- src/util/effect-zod.ts: delete ZodPreprocess symbol, its walkUncached
  branch, and the TODO comment. Zero remaining consumers.
- test/permission/next.test.ts: 6 new tests pinning the new semantics —
  order-independent precedence, wildcard-as-fallback, sub-pattern order
  preservation, canonical documented-example regression guard.
- test/config/config.test.ts: updated the "preserves key order" test to
  reflect the new canonical output shape (declaration-order known fields,
  then input-order rest keys). Behavioural guarantees live in the new
  permission tests.
- test/util/effect-zod.test.ts: delete the ZodPreprocess describe block
  (~115 lines of tests for the now-removed feature).

SDK diff vs dev:
- Removed `__originalKeys?: Array<string>` (internal leak).
- Catchall cleaned up (no unrelated `Array<string>`).
- Known-field types preserved (autocomplete + narrowing).
- Only shape change: PermissionConfig union order swap (commutative).

Safety audit: no config, test, or doc in the repo (including all 16
translations) exercises the pattern where specifics come before wildcards
at the top level. The only configs whose behaviour changes are ones that
were silently broken.

packages/opencode/test/util/effect-zod.test.ts

@@ -2,7 +2,7 @@ import { describe, expect, test } from "bun:test"
 import { Effect, Schema, SchemaGetter } from "effect"
 import z from "zod"
 
-import { zod, ZodOverride, ZodPreprocess } from "../../src/util/effect-zod"
+import { zod, ZodOverride } from "../../src/util/effect-zod"
 
 function json(schema: z.ZodTypeAny) {
   const { $schema: _, ...rest } = z.toJSONSchema(schema)
@@ -751,119 +751,4 @@ describe("util.effect-zod", () => {
       expect(schema.parse({ foo: "hi" })).toEqual({ foo: "hi" })
     })
   })
-
-  describe("ZodPreprocess annotation", () => {
-    test("preprocess runs on raw input before the inner schema parses", () => {
-      // Models the permission.ts __originalKeys pattern: capture the original
-      // insertion order of a user-provided object BEFORE Schema parsing
-      // canonicalises the keys.
-      const preprocess = (val: unknown) => {
-        if (typeof val === "object" && val !== null && !Array.isArray(val)) {
-          return { __keys: Object.keys(val), ...(val as Record<string, unknown>) }
-        }
-        return val
-      }
-      const Inner = Schema.Struct({
-        __keys: Schema.optional(Schema.mutable(Schema.Array(Schema.String))),
-        a: Schema.optional(Schema.String),
-        b: Schema.optional(Schema.String),
-      }).annotate({ [ZodPreprocess]: preprocess })
-
-      const schema = zod(Inner)
-      const parsed = schema.parse({ b: "1", a: "2" }) as {
-        __keys?: string[]
-        a?: string
-        b?: string
-      }
-      expect(parsed.__keys).toEqual(["b", "a"])
-      expect(parsed.a).toBe("2")
-      expect(parsed.b).toBe("1")
-    })
-
-    test("preprocess does not transform already-shaped input", () => {
-      // When the user passes an object that already has __keys, preprocess
-      // returns it unchanged because spreading preserves any existing key.
-      const preprocess = (val: unknown) => {
-        if (typeof val === "object" && val !== null && !("__keys" in val)) {
-          return { __keys: Object.keys(val), ...(val as Record<string, unknown>) }
-        }
-        return val
-      }
-      const Inner = Schema.Struct({
-        __keys: Schema.optional(Schema.mutable(Schema.Array(Schema.String))),
-        a: Schema.optional(Schema.String),
-      }).annotate({ [ZodPreprocess]: preprocess })
-
-      const schema = zod(Inner)
-      const parsed = schema.parse({ __keys: ["existing"], a: "hi" }) as {
-        __keys?: string[]
-        a?: string
-      }
-      expect(parsed.__keys).toEqual(["existing"])
-    })
-
-    test("preprocess composes with a union (either object or string)", () => {
-      // Mirrors permission.ts exactly: input can be either an object (with
-      // preprocess injecting metadata) or a plain string action.
-      const Action = Schema.Literals(["ask", "allow", "deny"])
-      const Obj = Schema.Struct({
-        __keys: Schema.optional(Schema.mutable(Schema.Array(Schema.String))),
-        read: Schema.optional(Action),
-        write: Schema.optional(Action),
-      })
-      const preprocess = (val: unknown) => {
-        if (typeof val === "object" && val !== null && !Array.isArray(val)) {
-          return { __keys: Object.keys(val), ...(val as Record<string, unknown>) }
-        }
-        return val
-      }
-      const Inner = Schema.Union([Obj, Action]).annotate({ [ZodPreprocess]: preprocess })
-      const schema = zod(Inner)
-
-      // String branch — passes through preprocess unchanged
-      expect(schema.parse("allow")).toBe("allow")
-
-      // Object branch — __keys injected, preserves order
-      const parsed = schema.parse({ write: "allow", read: "deny" }) as {
-        __keys?: string[]
-        read?: string
-        write?: string
-      }
-      expect(parsed.__keys).toEqual(["write", "read"])
-      expect(parsed.write).toBe("allow")
-      expect(parsed.read).toBe("deny")
-    })
-
-    test("JSON Schema output comes from the inner schema — preprocess is runtime-only", () => {
-      const Inner = Schema.Struct({
-        a: Schema.optional(Schema.String),
-        b: Schema.optional(Schema.Number),
-      }).annotate({ [ZodPreprocess]: (v: unknown) => v })
-      const shape = json(zod(Inner)) as any
-      expect(shape.type).toBe("object")
-      expect(shape.properties.a.type).toBe("string")
-      expect(shape.properties.b.type).toBe("number")
-    })
-
-    test("identifier + description propagate through the preprocess wrapper", () => {
-      const Inner = Schema.Struct({
-        x: Schema.optional(Schema.String),
-      }).annotate({
-        identifier: "WithPreproc",
-        description: "A schema with preprocess",
-        [ZodPreprocess]: (v: unknown) => v,
-      })
-      const schema = zod(Inner)
-      expect(schema.meta()?.ref).toBe("WithPreproc")
-      expect(schema.meta()?.description).toBe("A schema with preprocess")
-    })
-
-    test("preprocess inside a struct field applies only to that field", () => {
-      const Inner = Schema.String.annotate({
-        [ZodPreprocess]: (v: unknown) => (typeof v === "number" ? String(v) : v),
-      })
-      const schema = zod(Schema.Struct({ name: Inner, raw: Schema.Number }))
-      expect(schema.parse({ name: 42, raw: 7 })).toEqual({ name: "42", raw: 7 })
-    })
-  })
 })