feat: add comments thread to PR detail view

Fetch and display PR comments in the pull request detail page,
using the same Gitea issue comments API endpoint. Shows author,
timestamp, and body for each comment, with a friendly empty state
when no comments exist.

Closes leeworks-agents/gitea-mobile#81

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

internal/handlers/handlers.go

@@ -334,23 +334,29 @@ func (h *Handler) ListPulls(w http.ResponseWriter, r *http.Request) {
 	orgNames := h.getUserOrgs(r)
 
 	type pullsData struct {
-		Pulls       []giteaclient.PullRequest
-		Orgs        []string
-		SelectedOrg string
-		HasMore     bool
-		NextPage    int
-		Error       string
+		Pulls         []giteaclient.PullRequest
+		Orgs          []string
+		SelectedOrg   string
+		SelectedState string
+		HasMore       bool
+		NextPage      int
+		Error         string
 	}
 
 	selectedOrg := r.URL.Query().Get("org")
+	selectedState := r.URL.Query().Get("state")
+	if selectedState == "" {
+		selectedState = "open"
+	}
 	page, _ := strconv.Atoi(r.URL.Query().Get("page"))
 	if page < 1 {
 		page = 1
 	}
 
 	data := pullsData{
-		Orgs:        orgNames,
-		SelectedOrg: selectedOrg,
+		Orgs:          orgNames,
+		SelectedOrg:   selectedOrg,
+		SelectedState: selectedState,
 	}
 
 	if len(orgNames) == 0 {
@@ -361,7 +367,7 @@ func (h *Handler) ListPulls(w http.ResponseWriter, r *http.Request) {
 			queryOrgs = []string{selectedOrg}
 		}
 
-		result, err := h.Client.ListAllPullRequests(r.Context(), token, queryOrgs, "open", page)
+		result, err := h.Client.ListAllPullRequests(r.Context(), token, queryOrgs, selectedState, page)
 		if err != nil {
 			slog.Error("failed to list pull requests", "error", err)
 			data.Error = "Error loading pull requests."
@@ -526,6 +532,13 @@ func (h *Handler) PullDetail(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
+	// Fetch comments for this PR (Gitea uses the issues endpoint for PR comments).
+	comments, err := h.Client.GetIssueComments(r.Context(), token, owner, repo, index)
+	if err != nil {
+		slog.Warn("failed to fetch PR comments", "error", err, "owner", owner, "repo", repo, "index", index)
+		// Non-fatal: continue rendering without comments.
+	}
+
 	// Build the content HTML using the template.
 	tmpl, err := template.ParseFiles("internal/templates/pull_detail.html")
 	if err != nil {
@@ -537,11 +550,13 @@ func (h *Handler) PullDetail(w http.ResponseWriter, r *http.Request) {
 	type templateData struct {
 		Pull         *giteaclient.PullRequest
 		RenderedBody template.HTML
+		Comments     []giteaclient.Comment
 	}
 
 	data := templateData{
 		Pull:         pr,
 		RenderedBody: renderedBody,
+		Comments:     comments,
 	}
 
 	var buf strings.Builder

internal/templates/pull_detail.html

@@ -46,4 +46,21 @@
     <button type="submit" class="btn btn-primary">Submit Review</button>
   </form>
 </div>
+
+{{if .Comments}}
+<h2>Comments</h2>
+<div id="comments-list">
+{{range .Comments}}
+<div class="comment">
+  <div class="comment-header">
+    <strong>{{.User}}</strong>
+    <span>{{.CreatedAt}}</span>
+  </div>
+  <div class="comment-body">{{.Body}}</div>
+</div>
+{{end}}
+</div>
+{{else}}
+<p class="empty" style="margin-top:1rem;">No comments yet.</p>
+{{end}}
 {{end}}

internal/templates/pulls.html

@@ -17,7 +17,7 @@
   </div>
   {{end}}
   {{if .HasMore}}
-  <div class="scroll-sentinel" hx-get="/pulls?page={{.NextPage}}&org={{.SelectedOrg}}" hx-trigger="revealed" hx-swap="outerHTML" hx-target="this">
+  <div class="scroll-sentinel" hx-get="/pulls?page={{.NextPage}}&org={{.SelectedOrg}}&state={{.SelectedState}}" hx-trigger="revealed" hx-swap="outerHTML" hx-target="this">
     <div class="spinner htmx-indicator"></div>
   </div>
   {{end}}
@@ -27,18 +27,22 @@
 <h1>Pull Requests</h1>
 
 <div class="filter-bar">
-  <select name="org" hx-get="/pulls" hx-trigger="change" hx-target="#main-content" hx-swap="innerHTML" hx-push-url="true">
+  <select name="org" hx-get="/pulls" hx-trigger="change" hx-target="#main-content" hx-swap="innerHTML" hx-push-url="true" hx-include="[name='state']">
     <option value="">All orgs</option>
     {{range .Orgs}}
     <option value="{{.}}" {{if eq . $.SelectedOrg}}selected{{end}}>{{.}}</option>
     {{end}}
   </select>
+  <select name="state" hx-get="/pulls" hx-trigger="change" hx-target="#main-content" hx-swap="innerHTML" hx-push-url="true" hx-include="[name='org']">
+    <option value="open" {{if eq .SelectedState "open"}}selected{{end}}>Open</option>
+    <option value="closed" {{if eq .SelectedState "closed"}}selected{{end}}>Closed</option>
+  </select>
 </div>
 
 {{if .Error}}
 <p class="empty">{{.Error}}</p>
 {{else if not .Pulls}}
-<p class="empty">No open pull requests found.</p>
+<p class="empty">No {{.SelectedState}} pull requests found.</p>
 {{else}}
 <div id="pull-list">
   {{template "cards" .}}