fix: resolve fst-no-std version conflict causing pizza-engine CI check failure (#1074)

* feat: add deep research report workflow and viewer

* docs: update  changelog

* ci: update pizza repository reference from infinilabs to pizza-rs org

* fix deep research completion state

* fix: prevent deep research stream timeout

* fix: update deep research cancel copy

* fix: apply rustfmt formatting to attachment.rs

* fix: resolve fst-no-std version conflict in pizza-engine CI check

The 'check (macos-latest)' CI job fails because pizza-engine (added as a
CI dependency) uses infinilabs/fst-no-std while its transitive dependency
fst-regex uses pizza-rs/fst-no-std. Cargo treats these as two separate
crates, causing:

1. Automaton trait incompatibility between the two fst_no_std instances
2. MapBuilder, Error::Io, and Set::from_iter not found because the
   infinilabs fork gates them behind 'std' feature while pizza-engine
   only enabled 'alloc'

Fix:
- Add [patch."https://github.com/infinilabs/fst-no-std"] to
  src-tauri/Cargo.toml to redirect the infinilabs fork to
  pizza-rs/fst-no-std, unifying both into a single crate instance.
  This patch is a no-op for normal builds without pizza-engine.
- Update the CI workflow to also add fst-no-std with std feature so that
  Error::Io (gated by std) and MapBuilder are available after the redirect.

* Update Cargo.toml

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Medcl <m@medcl.net>

.github/workflows/release.yml

@@ -86,7 +86,7 @@ jobs:
       - name: Checkout dependency repository
         uses: actions/checkout@v4
         with:
-          repository: "infinilabs/pizza"
+          repository: "pizza-rs/pizza"
           ssh-key: ${{ secrets.SSH_PRIVATE_KEY }}
           submodules: recursive
           ref: main

.github/workflows/rust_code_check.yml

@@ -20,7 +20,7 @@ jobs:
     - name: Checkout dependency (pizza-engine) repository
       uses: actions/checkout@v4
       with:
-        repository: 'infinilabs/pizza'
+        repository: 'pizza-rs/pizza'
         ssh-key: ${{ secrets.SSH_PRIVATE_KEY }}
         submodules: recursive
         ref: main
@@ -43,7 +43,13 @@ jobs:
     - name: Add pizza engine as a dependency
       working-directory: src-tauri
       shell: bash
-      run: cargo add --path ../pizza/lib/engine --features query_string_parser,persistence
+      run: |
+        cargo add --path ../pizza/lib/engine --features query_string_parser,persistence
+        # Add fst-no-std with the std feature to enable MapBuilder and Error::Io.
+        # The [patch] in Cargo.toml redirects infinilabs/fst-no-std (used by pizza-engine)
+        # to pizza-rs/fst-no-std (used by fst-regex) so both resolve to the same crate.
+        # The std feature activates the Error::Io variant and MapBuilder that pizza-engine requires.
+        cargo add fst-no-std --git https://github.com/pizza-rs/fst-no-std --branch main --features std
 
     - name: Format check
       working-directory: src-tauri