v4.0.0 — Route publique /p/<slug>, correctifs publish/share UI

- Ajout route /p/<slug> qui sert les pages publiées (no auth, rendu HTML blocks)
- Template public_page.html — design épuré Notion-style
- Fix publishPage()/unpublishPage(): vérifient d.is_published au lieu de d.status==='ok'
- Fix shareInvite(): vérifie d.status==='shared'
- Fix removeShare(): vérifie d.status==='removed'
- ROADMAP.md: toutes les sections 4.0a-4.0e cochées ✅ (déjà implémentées)
- Version bump 2.5.0 → 4.0.0

app/routers/dashboard.py

@@ -1724,3 +1724,123 @@ async def sidebar_workspace_tree(request: Request):
             '<li class="sidebar-item empty-hint"><span class="page-icon">📄</span>'
             '<span class="page-name text-dim">No pages yet</span></li>'
         )
+
+
+# ═══════════ Public Published Page ═══════════
+
+
+@router.get("/p/{slug}", response_class=HTMLResponse)
+async def public_published_page(request: Request, slug: str):
+    """Serve a published page at /p/<slug> — no auth required."""
+    from jinja2 import Environment, FileSystemLoader
+
+    with get_conn() as conn:
+        row = conn.execute(
+            "SELECT id, title, content, content_format, updated_at, created_at "
+            "FROM pages WHERE publish_slug=? AND is_published=1",
+            (slug,),
+        ).fetchone()
+
+    if not row:
+        return HTMLResponse(
+            """<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8">
+<title>Not Found — FlowDeck</title>
+<style>body{font-family:system-ui,sans-serif;display:flex;align-items:center;
+justify-content:center;height:100vh;margin:0;background:#191919;color:#ccc;}
+h1{font-size:3rem;opacity:.3}</style></head><body><h1>404</h1></body></html>""",
+            status_code=404,
+        )
+
+    page = dict(row)
+    env = Environment(loader=FileSystemLoader("app/templates"))
+
+    # Convert blocks to HTML for rendering
+    content_html = ""
+    if page.get("content_format") == "blocks" and page.get("content"):
+        import json as _json
+        try:
+            blocks = _json.loads(page["content"])
+            content_html = _render_blocks_public(blocks)
+        except (_json.JSONDecodeError, Exception):
+            content_html = f"<p>{page.get('content', '')}</p>"
+    elif page.get("content"):
+        # Plain text / markdown
+        text = page["content"]
+        content_html = f"<pre style='white-space:pre-wrap;font-family:system-ui;font-size:16px;line-height:1.6;'>{text}</pre>"
+
+    template = env.get_template("public_page.html")
+    return template.render(
+        title=page["title"] or "Untitled",
+        content_html=content_html,
+        updated_at=page.get("updated_at", ""),
+        created_at=page.get("created_at", ""),
+    )
+
+
+def _render_blocks_public(blocks: list) -> str:
+    """Render FlowDeck blocks as plain HTML for public pages."""
+    import json as _json
+    html_parts = []
+    for b in blocks:
+        t = b.get("type", "paragraph")
+        c = b.get("content", "") or ""
+        if t == "heading_1":
+            html_parts.append(f'<h1 style="font-size:2.5rem;font-weight:700;margin:32px 0 8px;">{c}</h1>')
+        elif t == "heading_2":
+            html_parts.append(f'<h2 style="font-size:1.75rem;font-weight:600;margin:28px 0 6px;">{c}</h2>')
+        elif t == "heading_3":
+            html_parts.append(f'<h3 style="font-size:1.35rem;font-weight:600;margin:24px 0 4px;">{c}</h3>')
+        elif t == "heading_4":
+            html_parts.append(f'<h4 style="font-size:1.15rem;font-weight:600;margin:20px 0 4px;">{c}</h4>')
+        elif t == "bulleted_list":
+            html_parts.append(f'<li style="margin-left:24px;">{c}</li>')
+        elif t == "numbered_list":
+            html_parts.append(f'<li style="margin-left:24px;list-style:decimal;">{c}</li>')
+        elif t == "to_do":
+            checked = "checked" if b.get("checked") else ""
+            todo_style = "text-decoration:line-through;opacity:.5" if b.get("checked") else ""
+            html_parts.append(
+                f'<div style="display:flex;align-items:center;gap:8px;margin:4px 0;">'
+                f'<input type="checkbox" {checked} disabled>'
+                f'<span style="{todo_style}">{c}</span>'
+                f'</div>'
+            )
+        elif t == "toggle":
+            html_parts.append(
+                f'<details style="margin:8px 0;"><summary style="cursor:pointer;font-weight:500;">{c}</summary></details>'
+            )
+        elif t == "quote":
+            html_parts.append(
+                f'<blockquote style="border-left:3px solid var(--accent,#4c9aff);margin:12px 0;padding:4px 16px;opacity:.85;">{c}</blockquote>'
+            )
+        elif t == "callout":
+            icon = b.get("icon", "💡")
+            bg = (b.get("style") or {}).get("bgColor", "rgba(76,154,255,.1)")
+            html_parts.append(
+                f'<div style="display:flex;gap:10px;padding:14px 18px;margin:12px 0;border-radius:8px;'
+                f'background:{bg};align-items:flex-start;">'
+                f'<span style="font-size:20px;flex-shrink:0;">{icon}</span>'
+                f'<span>{c}</span></div>'
+            )
+        elif t == "code":
+            lang = b.get("language", "")
+            lang_label = f"<div style='font-size:11px;opacity:.4;margin-bottom:8px;'>{lang}</div>" if lang else ""
+            html_parts.append(
+                f'<pre style="background:rgba(255,255,255,.05);padding:16px 20px;border-radius:8px;'
+                f'overflow-x:auto;font-size:14px;line-height:1.5;margin:12px 0;">'
+                f'{lang_label}'
+                f'<code>{c}</code></pre>'
+            )
+        elif t == "divider":
+            html_parts.append('<hr style="border:none;border-top:1px solid rgba(255,255,255,.1);margin:16px 0;">')
+        elif t == "image":
+            src = b.get("src", "")
+            alt = b.get("alt", "")
+            html_parts.append(
+                f'<figure style="margin:16px 0;text-align:center;">'
+                f'<img src="{src}" alt="{alt}" style="max-width:100%;border-radius:8px;">'
+                f'</figure>'
+            )
+        else:
+            html_parts.append(f'<p style="margin:4px 0;line-height:1.7;">{c}</p>')
+    return "\n".join(html_parts)