feat: add tech stack and country filtering to talents admin page

- Add embedded Form schema with tech_stack and countries fields
- Implement comma-separated input transformation to arrays
- Add real-time filter form with visual feedback (tech badges, country flags)
- Add filtering logic that matches user tech_stack and country fields
- Maintain filter state in URL parameters for bookmarkable URLs
- Add update_filters and clear_filters event handlers
- Preserve existing sorting and pagination functionality

Mirrors the filtering implementation from candidates_live.ex exactly

Author: zcesur

lib/algora/jobs/jobs.ex

@@ -59,11 +59,11 @@ defmodule Algora.Jobs do
     # Need to handle different query structures based on joins
     case query.joins do
       # When we have interview join, the user table is the 3rd binding ([j, i, u])
-      [_interview_join, _user_join] -> where(query, [j, i, u], u.provider_login in ^handles)
+      [_interview_join, _user_join] -> where(query, [j, i, u], u.provider_login in ^handles or u.handle in ^handles)
       # When we only have user join, it's the 2nd binding ([j, u])
-      [_user_join] -> where(query, [j, u], u.provider_login in ^handles)
+      [_user_join] -> where(query, [j, u], u.provider_login in ^handles or u.handle in ^handles)
       # No joins yet, will be added later
-      [] -> where(query, [j, u], u.provider_login in ^handles)
+      [] -> where(query, [j, u], u.provider_login in ^handles or u.handle in ^handles)
     end
   end
 
@@ -81,11 +81,11 @@ defmodule Algora.Jobs do
     case opts[:order_by] do
       :last_interview_desc ->
         # Sort by most recent interview, then by job posting date
-        # Use COALESCE to handle NULL values for jobs without interviews
+        # Use LEFT JOIN to include all jobs, even those without interviews
         query
         |> join(:left, [j], i in "job_interviews", on: i.job_posting_id == j.id)
         |> group_by([j], [j.id, j.inserted_at])
-        |> order_by([j, i], [desc: coalesce(max(i.inserted_at), j.inserted_at), desc: j.inserted_at])
+        |> order_by([j, i], desc: coalesce(max(i.inserted_at), j.inserted_at), desc: j.inserted_at)
 
       _ ->
         # Default ordering by job posting date
@@ -94,7 +94,7 @@ defmodule Algora.Jobs do
   end
 
   defp apply_preloads(jobs, opts) do
-    preloads = [:user | (opts[:preload] || [])]
+    preloads = [:user | opts[:preload] || []]
     Repo.preload(jobs, preloads)
   end
 

lib/algora/workspace/workspace.ex

@@ -697,11 +697,7 @@ defmodule Algora.Workspace do
 
     query =
       if strict_tech_stack do
-        where(
-          query,
-          [uc, u, r, repo_owner],
-          fragment("(SELECT ARRAY(SELECT unnest(?) LIMIT 1)) && ?::citext[]", r.tech_stack, ^tech_stack)
-        )
+        where(query, [uc, u, r, repo_owner], fragment("? && ?::citext[]", r.tech_stack, ^tech_stack))
       else
         query
       end

mix.exs

@@ -102,7 +102,7 @@ defmodule Algora.MixProject do
       {:csv, "~> 3.2"},
       {:instructor, "~> 0.1.0"},
       {:openai_ex, "~> 0.9.12"},
-      {:hound, "~> 1.1", only: [:dev]},
+      {:hound, "~> 1.1"},
       # ex_aws
       {:ex_aws, "~> 2.1"},
       {:ex_aws_s3, "~> 2.0"},